comp sc qstn

INDIAN BANK IT OFFICER EXAM

date 11-5-11

1.A passive threat to computer security is_____

1 Malicious Intent

2 Sabotage

3 Accidental Errors

4 Espionage Agents

5 none of these

2.____allows wireless mobile devices to access the Internet and its service such as the web and e-mail

1 TCP/IP

2 Ethernet

3 WAP

4 Token Ring

5 none of these

3. 'DOS' floppy Disk does not have____

1 A boot record

2 A file allocation record

3 A root directory

4 Virtual memory

5 BIOS

4.All the information collected during database developement is stored in a____

1 repository

2 data warehouse

3 RAD

4 CASE

5 none of these

5.The______component is used by the data analyst to create the queries that access the database.

1 dada extraction

2 end-user query tool

3 end-user presentation tool

4 data store

5 none of these

6. The altering of data so that it is not usable unless the changes are undone is____

1 Biometrics

2 compression

3 Encryption

4 Ergonomics

5 none of these

5 none of these

8. RSA is___

1 Symmetric Cryptosystem

2 asymmetric cryptosystem

3 Block Cypher

4 Digital Signature

5 none of these

9.____are used to identify a user who returns to a website

1 cookies

2 plug ins

3 Scripts

4 ASPs

5 none of these

10 In oracle, who owns the data Dictionary?

1 Oracle

2 SYS

3 The Dba

4 SYSTEM

5 None of these

11.What is the name of protocol used in eliminate loops?

1 Switching

2 ISL

3 Frame tagging

4 Spanning tree protocol

5 none of these

12.If 20 people need to communicate using symmetric-key cryptography,____symmetric keys are needed

1 190

2 200

3 20

4 19

5 210

13. Database redesign is not teribly difficult if the____

1 database is structured

2 database is well-designed

3 database has no data

4 database is relatively small

5 database is rekatively large

14.If you wanted to locate the hardware address of a local device, which protocol would you use?

1 ARP

2 RARP

3 ICMP

4 PING

5 PONG

15. What is Internet 2?

2 A second local area network that can connect with another online LAN to share access

3 A new standard for Internet browsers

4 An association to develop advanced Internet technology

5 None of these

16. While searching a website, you have been unable to find information that was on the site several months ago. What might you do to attempt to locate that information?

1 Visit Google's cached page to view the older copy.

2 Forget about it, as there is no way to find this information.

3 Visit a partner site of the organization to see if it is there.

4 Use the wayback machine.

5 None of these

17. Which kind of lock includes a keypad that can be used to control access into areas?

1 Cipher

2 Warded

3 Device

4 Tumbler

5 Typelock

18. Graphical diagrams used to represent different multiple perspectives of a system include a

1 use-case, class, and state diagrams

2 state, interaction, derivative diagrams

3 interaction, relationship, and class diagrams

4 deployment, relationship, and use-case diagrams

5 None of these

19. Programs that automatically submit your search request to several search engines simultaneously are called__

1 Metasearch engines

2 Webcrawlers

3 Spiders

4 Hits

5 None of these

Descriptive Papers (Computer sc.) in Banks

ALLAHABAD BANK:

Descriptive Question of Allahabad Bank (IT Officer Scale-1)

Exam held on 1st March , 2009.

1.(a). Describe the DNS and Name Resolution ?

(b). what is the relation between Switch and Bridge? Describe the advantage of dividing Ethernet LAN with bridge.

2.(a).What is cryptography? Explain the encryption and decryption process?

(b).Describe the advantages and disadvantages of Structural Approach and Object Oriented Analysis Approach.

3.(a).What is RAID? Explain its characteristics.

(b).Explain the method of manual and dynamic IP allocation.

4.(a).Why would you want to replicate data in a database ?

(b).Why Client/Server architecture is more efficient than a database on a Single file Server?

5.(a). What are threats to a financial institutions like Banks ?

(b). How is the Hot site used to protect Business Application of a financial firm like Banks?

UCO BANK

UCO BANK IT OFFICER (EXAM HELD ON 12.07.2009 JMGS - 1)

descriptive part

Q1). (a)i). What is a Database Trigger?

ii).Explain the concept of Stored Procedure and briefly describe the advantage of using triggers?

(b)i).What is a view?

ii).How it is related to data independence?

Q 2).a). (i). What is a distributed system?

(ii). What are the advantages of distributed systems?

b). (i).What is a remote query ?

(ii).How it is processed?

Q 3).a). Explain the need of concurrency control.

What is its significance in Banking Transaction?

b). (i). Explain what you understand by cookies? How are they useful?

(ii)What are the advantages of using sessions over cookies and URL Rewriting?

Q 4).(a). (i). What is the difference between an Applet and Servlet?

(ii). What is a life cycle of a Servlet?

(b) .(i). Why is a XML important for a database application?

Q 5). (a). Discuss in details the use of a Computer Network?

(b). (i). What is ICMP?

(ii). What is difference between ARP and RARP?

Q 6). (a). What security techniques are used to protect computer systems ?

(b). How is data protected during transmission over a network?

Q 7). (a). How has E-Business changed the definition of enterprise systems ?

(b). Distinguish between the various Normal forms in a database ?

Q 8). (a). (i).What are the different types of Back UP possible for the data in a database ?

(ii). Briefly describe them ?

(b). (i). What is a Data Warehouse?

(ii). How it is difference from a database?

SBI IT OFFICER EXAM QUESTIONS

1. Few questions from java like, Java Virtual Machine(JVM), JDBC, Applet (3 Questions)

2. Database questions

e.g. query using aggregate function(1 Question)

3. How to add a not null constraint to a already created table. (1 Question)

4. Primary key – not null and unique (1 Question)

5. What is a datatable in database(1 Question)

6. What is metadata in database(1 Question)

7. What is property of transaction?

8. Either a transaction is fully committed or fully discarded. Which property is it? Ans: Atomicity

9. Question related to Oracle Extent, Table

10. Network and security (5 – 6 Questions)

11. TCP/IP

12. SOAP protocol

13. SMTP – sending and receiving mail

14. What is a worm?

15. DSS (Decision support system)

16. How signal moves from a mobile to a tower? Uplink Channel

17. Data backup and recovery (3 – 4 Questions)

18. Disaster recovery (3 – 4 Questions)

19. Web technology and security (5 Questions)

20. HTML elements defined using -----? : HTML Tags

21. How JavaScript is mentioned in a HTML file.

22. Which language is used in ASP scripting?

23. Software development life cycle, phases (3 Questions)

24. Testing, Unit testing, System testing (3 Questions)

25. What is Honey Pot?

26. Dial up connection uses static ip. True or false.

27. Cache memory

28. How to protect data in laptop. A. By setting password B. Encryption C. Physical locking

29. Disadvantage of Single Sign On (SSO)

30. Why EFT is better than Manual Cheques?

31. System software/ application software

32. Search engine/ spider/ bots/ crawlers

33. ISP/ ASP/ Web Hosting

PNB IT OFFICER EXAM.........2011(Based on memory)

1.DDBMS what is called if duplicate database at each client? homogenous/heterogenous/heterophylic

2.Data transfer public network to privat n/w without knowledge of inbetween nodes? tunnelling/chaffing

3. Data integrity-- consistent

4. Data security? Data acces to authenticated users

5.ASP ? client side scripting/ server side scripting

6. device manager? Interface between

7.ROLAP, MOLAP? datawarehouse/Data Mining

8.4th Normal form? Multivalued Dependency

9.Firewall in router? two way from internet filter

10.As go down in OSI the headers will? modified/increase/decrease

11. which layer in OSI is further divided into two sublayers? Data link layer

12.Ensapsulation?

13.RAd Level 1? Mirroring, Redundant data

14 . Normalisation? redundant data removal till d consistency is maintained

15. Wat take care f file operations in database? Application Server

16. Which one is used 4 geting access to private data? b-tracker...

INDIAN BANK EXAM QUESTIOS 2010(based on memory)

1. Programs that automatically submit your search request to several search engines simultaneously are calledâ€”

(1) Metasearch engines

(2) Webcrawlers

(3) Spiders

(4) Hits

(5) None of these

2. Graphical diagrams used to represent different multiple perspectives of a system includeâ€”

(1) use-case, class, and state diagrams

(2) state, interaction, derivative diagrams

(3) interaction, relationship, and class diagrams

(4) deployment, relationship, and use-case diagrams

(5) None of these

3. Database redesign is not terribly difficult if theâ€”

(1) database is structured

(2) database is well-designed

(3) database has no data

(4) database is relatively small

(5) database is relatively large

4. Which of the following are normally used to initialize a computer system's hardware?

(1) Bootstrap memory

(2) Volatile memory

(3) Exteranl mass memory

(4) Static memory

(5) Random access memory

5. If you wanted to locate the hardware address of a local device, which protocol would you use?

(1) ARP

(2) RARP

(3) ICMP

(4) PING

(5) PONG

6. What is Internet 2?

(1) A new type of cabling system for Wide Area Networks

(2) (2) A second local area network that can connect with another online LAN to share access

(3) A new standard for Internet browsers

(4) An association to develop advanced Internet technology

(5) None of these

7. The term, "hypertext", meansâ€”

(1) Non-sequential writing

(2) Hypermedia

(3) Blinking text

(4) Text with heavy formatting

(5) None of these

8. While searching a website, you have been unable to find information that was on the site several months ago. What might you do to attempt to locate that information?

(1) Visit Google's cached page to view the older copy.

(2) Forget about it, as there is no way to find this information.

(3) Visit a partner site of the organization to see if it is there.

(4) Use the wayback machine.

(5) None of these

9. Which kind of lock includes a keypad that can be used to control access into areas?

(1) Cipher

(2) Warded

(3) Device

(4) Tumbler

(5) Typelock

10. Aâ€¦â€¦â€¦â€¦â€¦..sometimes called a boot sector virus, executes when a computer boots up because it resides in the boot sector of a floppy disk or the master boot record of a hard disk.

(1) system virus

(2) trojan horse virus

(3) file virus

(4) macro virus

COMPUTER Study MaterialStudy Material related to Computer can b posted here. Computer - TerminologyACTIVE MATRIX DISPLAY or TFT (THIN FILM TRANSISTOR) – It is a technology used in the flat panelliquid crystal displays of notebook & computers. It provides a more responsive image at a wider range of viewing angle than dual scan (passive matrix) displays.

AGP (ACCELERATED GRAPHICS PORT) – It is an interface specification that enables 3-D graphics to display quickly on ordinary personal computers. BPS (BITS PER SECOND) – A measure of the speed of data transmission: the number of bits of data that can be transmitted each second.

BBS (BULLETIN BOARD SYSTEM) – A system by which other computers can connect so their users can read & leave messages, or retrieve & leave files.

CMOS (COMPLIMENTARY METAL OXIDE SEMICONDUCTOR) – A CMOS computer circuit consumes very little power & is used in computers to keep track of the system setup information, data, time, type of disk & hard drives etc. that a computer has installed. The CMOS information is powered by the computer’s on board battery. So if the on board battery fails, the information in CMOS will be lost.

CYBERSPACE – A term coined by author WILLIAM GIBSON. It describes the imaginary space in which computer users travel when “surfing” the internet. DARPA (US DEFENCE ADVANCED RESEARCH PROJECTS AGENCY – now ARPA) – One of the bodies which created the concept of the Internet & funded the development of Internet facilities for many years.

DISK CACHE – is a mechanism for improving the time it takes to read from or write to a hard disk.

FAX (FACSIMILE TRANSMISSION) – is the use of voice quality telephone lines to send copies of documents which may include drawing as well as text.

FTP (FILE TRANSFER PROTOCOL) – A service for moving an electronic file of any type from one computer to another over the Internet. IDE (INTEGRATED DRIVE ELECTRONICS) – An interface used mainly by hard drives & CD-ROM drives to connect to the computer.

IRC (INTERNET RELAY CHAT) – A software tool that makes it possible to hold real time keyboard conversations online.

ISDN (INTEGRATED SERVICES DIGITAL NETWORK) – It is Large Bandwith Telephone Line which allows you to transfer information quickly. JAVA – Developed by SUN MICROSYSTEMS mainly to enhance the “online experience” of the WWW.

NIC (NETWORK INTERFACE CARD) – Card which allows to communicate with a network, usually a LAN or a WAN. A type of NIC that is specifically made for LAN’s is called an ETHERNET CARD. A NIC is connected to a special network outlet with a cord called CAT5 or CATEGORY 5 CABLE.

PDF (PORTABLE DOCUMENT FORMAT) – A document format read by Adobe System’s Acrobat Viewer.

PCI (PERIPHERAL COMPONENT INTERCONNECT) – It is an interconnection system between a microprocessor & attached devices in which expansion slots are spaced closely for high speed operation.

PERIPHERALS – are devices connected to a computer which are not a part of the main machine. Examples are Mouse, Speakers, Keyboards, Printers, Scanners etc.

PLUGIN – A helper application that works within a browser. It adds more functionality to a browser commonly associated with the NETSCAPE NAVIGATOR BROWSER software.

SCSI (SMALL COMPUTER SYSTEMS INTERFACE) – A set of standards used by an input device to interface with the computer. SCSI system can “daisy chain” up to 7 devices to a single connection, each device must be properly terminated for the entire chain of devices to work.

SMTP (SIMPLE MAIL TRANSER PROTOCOL) – One method to a computer uses to send e-mail from one computer to another. Other methods include MIME (MULTI PURPOSE INTERNET MAIL EXTENSIONS) & PEM (PRIVACY ENHANCED MAIL).

SQL (STRUCTURED QUERY LANGUAGE) – An official ANSI language for retrieving information from a database. Most database software providers add extensions. The “official” pronunciation is “SEQUEL”.

STREAM – Audio or Video transfer of signals in digital form. It is then downloaded on your computer & played back using various tools.

STT (SECURE TRANSACTION TECHNOLOGY) – Technology to protect financial dealings over the Internet & prevent fraud.

TWAIN (TECHNOLOGY WITHOUT AN INTERESTING NAME) – is the interface used by an input device such as a scanner to import images into the computer.

VRML (VIRTUAL REALITY MARK UP LANGUAGE) – Protocol Language which allows 3 D representation of graphics.

WYSIWYG (WHAT YOU SEE IS WHAT YOU GET) – Pronounces “wizziwig”. It means what you see on your screen is what is going to print out on your printer.

ZINE – Electrnonic magazines, published on the Internet.

Types of Computer1. MAINFRAME COMPUTERS – which allows hundreds of men to work at the same time on the same data.

2. SUPER COMPUTERS – These are used for jobs that take massive amounts of calculating, like WEATHER FORECASTING, ENGINEERING DESIGN & TESTING SERIOUS DESCRIPTION, ECONOMIC FORECASTING, etc.

3. TABLET PC – With this you use an electronic stylus to write on the screen or you can let the Hand Recognition (HR) software turn your chicken scratches into regular text.

4. PDA’s (PERSONAL DIGITAL ASSISTANTS) – Hand held devices.

BASIC COMPUTER ARCHITECTURE1. SCANNER, LIGHTPEN, THUMB DRIVE, MICROPHONE, DIGITAL CAMERA are INPUT DEVICES.

2. PRINTER, SPEAKERS, SECONDARY STORAGE DEVICES, PROJECTOR, CD are OUTPUT DEVICES.

3. PERIPHERALS – are things that you connect to the computer. They are usually classified as either input devices or output devices.

4. The data in any form is first DIGITIZED i.e. converted into binary form, by the input device before being fed to the CPU.

5. 1 BYTE = 8 BITS; 1 KB = 1024 BYTES; 1 MB = 1024 KB; 1 GB = 1024 MB

6. RAM – VOLATILE in nature i.e. the information it contains is lost as soon as the system is shut down unless “saved” for further usage by users. TYPE OF RAM are: (A) DRAM – DYNAMIC RAM (B) SRAM – STATIC RAM – They need no regenerator to retain the data. They retain the data as long as they receive the power.

7. ROM – NON-VOLATILE or PERMANENT in nature. TYPES OF ROM are: (A) PROM – PROGRAMMABLE ROM – is used to record the information in the PROM chip. Information once programmed into the PROM chip is PERMANENT & cannot be changed or erased. (B) MROM – MASKED ROM – the information is permanently recorded by the masking & metallization process. The manufacturer performs this process. (C) EPROM – ERASABLE PROGRAMMABLE ROM (D) EEPROM – ELECRICALLY ERASABLE PROGRAMMABLE ROM

8. THE CACHE MEMORY – It lies in the path between the PROCESSOR & the MAIN MEMORY. The cache memory has LESSER ACCESS TIME than the main memory & is faster than the main memory. A cache memory may have an access time of 100ns, while the main memory may have an access time of 700ns. The cache memory also stores temporary data that the CPU may frequently require for manipulation.

9. The cache memory is VERY EXPENSIVE & hence is limited in capacity. The need of the Cache Memory is due to the mis-match between the speeds of the main memory & the CPU. The CPU clock is very fast, whereas the main memory access time is comparatively slower. Hence, no matter how fast the processor is, the processing speed depends more on the speed of the main memory.

10. TEXT CODES – A standard code that can be universally implemented i.e. the values that represented the numbers, characters, punctuation marks & special symbols. The three most popular systems developed for this purpose are: (A) EBCDIC – EXTENDED BINARY CODED DECIMAL INTERCHANGE CODE – It is an 8 bit code that defines 256 symbols. (B) ASCII – It is a 7 bit code specifies character only up to 127. (C) UNICODE – It provides 2 bytes that is 16 bits to represent each symbol.

11. PLOTTERS – are large scale printers used for technical drawings such as engineering drawings. FLATBED PLOTTERS are HORIZONTALLY aligned with a flat surface to which a piece of paper is attached. DRUM PLOTTERS are VERTICALLY positioned.

12. TYPES OF PRINTERS – (A) LED (LIGHT EMITTING DIODE) / LCD (LIQUID CRYSTAL DISPLAY) PRINTER

– Both printers use a light source to create an image on a drum. (B) IMPACT (DOT MATRIX) PRINTER – use a set of closely spaced pins & a ribbon to print letters.(C) DYE SUBLIMATION PRINTERS – These printers work by heating the ink so that it turns from a solid into a gas.(D) LASER PRINTERS

13. FIREWIRE (IEEE) – It is a high speed cable used primarily to transfer data.

14. ETHERNET CABLE – It allows the computer to get on the Internet & communicate with other computers.

15. SIMMs have either 30 or 72 connectors (pins)

16. FUNCTION OF THE ALU – (A) REGISTER – A register is a combination of memory storage locations called FLIP-FLOPS. Each FLIP-FLOP is capable of storing one bit of information.(B) ACCUMULATOR – It is a register that is present within the ALU. The accumulator stores data, which is either the result of an operation, or which is to be processed through arithmetic & logical operations.(C) MEMORY DATA REGISTER (MDR) – It is used to store data. This register holds all data & instructions temporarily as they pass in or out of the main memory.(D) MEMORY ADDRESS REGISTER (MAR) – It contains the address of the memory location (in main memory) whose data is to be transferred into the memory data register.

OPERATING SYSTEMThe operating system provides an interface to several component parts using what is referred to as “DRIVERS”. MICROSOFT OUTLOOK which is used to send & receive e-mail.MS-DOS is an operating system initially developed by “TIM PATTERSON” & he later sold it to Microsoft Corporation. COMPONENTS OF MS-DOS(A) BOOT RECORD – (B) IO.SYS PROGRAM – The program interacts between the computer’s ROM, BIOS & MS.DOS SYS. (C) MS DOS.SYS – It interacts directly with the application program & IO.sys prog. (D) COMMAND.COM - COLD BOOTING – Firstly the memory & the peripheral devices are checked before loading the operating system.WARM BOOT – Performed by pressing “CTRL+ALT+DEL” key simultaneously. Memory & peripheral devices are not checked in this case. The operating system is directly loaded.

http://www.orkut.co.in/Interstitial?u=http://command.com/&t=AKXqY3Obl_esmpX--J-DujzC_diITcuYpBVF6BHPOhTLLepkcou6qJpV89btnA5JBcIcq4CgFTjFWubyjMexdr4Egu0z4qwcLwAAAAAAAAAA

Computer fundamentalENVIC-HAD 20,000 VACCUME TUBE, FIRST ELECTRONIC COMPUTERLovelace was first computer programmerGeorge Boolie- first develop Boolean AlgebraIntel and Motorola Makes processor. Intel makes for IBM and IBM compatible computer Ex Pentium ,and Motorola makes for Apple ,latest one power PC ie G3 for I MACCOMPUTER-have two parts :HardwareInput-Ex: Keyboard,Mouse,web cam,Joystick,Light pen,MICR,OMR,BIOMATRIX,STYLUS,MICROPHONE.Processing-Ex ; CPU,Motherboard,RAM,SMPS.Output-Ex : Monitor,Printer,Speaker,Plotter,Projector.storage-Ex :Hard drive,Floppy Drive,CD,DVD,BRD,Lip Drive,Memory Card,Pen drive,Magnetic tape2. softwareKeyboard-Keys F1,F2 to F12 :are called as Function Keys0123 to9 :are called as Numeric keysASDF :are called as AlphabetsALT,CTRL :are called as Special KeysINPUT-------> PROCESSING-------->OUTPUT----------------->STORAGE(SAVE) First Computer Generation:(1951-58) Computer have Vacuum tube that's work on thermionic emissionDrum as Primary storagePunched cards/paper tape as Sec storage mediaEx- ENVIC,EDVAC,EDSAC 2nd Computer Generation:(1959-64)Semiconductor with impurities best called as TransistorMagnetic core as primary storage device\tape sec storage deviceFORTAN,COBAL language evolvedEx IBM 700,1401 3rd Computer Generation:(1964-71)IC( Integrated Chips) evolved ie Transistor packed on thin WaferMagnetic disc used for sec storageCOBAL,ALGOL Language evolvedFirst time Operating system usedMultiprogramming evolvedEx-IBM 360/370

4th Computer Generation (1971-85)- Have very large scale IC(VLSIC) that,s have huge unit of Transistors Packed.Semiconductor used as primary as well as primary storage device.Micro and personal computer developedCRT monitor developedApplication developed

Virtual OSMicroprocessor used 5th Computer Generation-Artificial intelligenceLISP(Special Purpose Language) will be usedProlog(pro-gramme for logic)SMALL,TALK,Truly 5th Generation computer is not availablewould use organic chips.. When computer starts:on screen BIOS(Basic Input output system) will displayed. Bios is set of instruction in ROM that controls how hardware and OS communicate to each other. The process of putting BIOS on RAM is K/A SHADOWINGAfter that computer will perform POST( power on Self Test) ie a set of test for hardware.After that computer look for OS,first in floppy drive than in hard drive.For DOS/Window KERNEL loaded first,Now computer look for three files iecommand langauge interpreter:key stroke 1and 0'sconfig-sys-what device connected: ex -mouse,cd drive,scanner,Autoexec.bat :does optional task like running prog.Computer have 3 parts iePeripheral Parts ---HardwareBuses and Cables-interconnecting wiresData given and output requiredBays-A space where hardware ,floppy drive or CD ROM drive sit.ROM chips,RAM chips and CPU are all plugged to small socket on motherboard.AUXILRY CIRCUIT BOARDS K/A cards,can be plugged into larger extension sockets. These sockets holds CD-Rom. Sound Card,Fax Modem Cards.Transformer – convert normal hose hold current to much lower voltage which the mother can use. PERIPHERAL DEVICES:Hardware component ie Input devices, output devices ,storage,processing.INPUT DEVICESKeyboard :Digitizer:used to draw pictures /scteches images through cursor pen.MouseScanner:Use optical character recognization technique .Varies types ie Flatbed Scanner,Shetheld Scannner,Handheld Scanner,Drum Scanner.OUTPUT DEVICES :Printer: two types -Impact and Non impact Printer.Impact printer is of 3 types ie Dot matrix,Line printer,Daisey Wheel Printer(can Print short Images on Papper or on Sheet).Non Impact printer is of 2 types ie Inkjet/Bubblejet Printer and Laser/page printer. (Plotter are used to draw high quality images of various colors and draws continuous lines). Memory:Two kind of Memory ie RAMInstuction Disappears when computer turned off,OS ,programme,Data Kept

faster than other storageLittle storage capacityMore RAM faster PCROM:Instruction data not disappear when computer turned offalso K/A as primary storageHave switches that are permanently set factoryPROM(programmable Read only memory)- one time writableEPROM(Erasible Prograbble read only memory)-Erased by Ultravoilet light,reusale,most commonly used.EEPROM(Electricaly Erasible Prograbble read only memory)erased by high electric current,Not necessory to remove from PC for erasing ,reusable limited life.FLASH RAM-Part of EEPROM,erased at normal PC voltage ,constantly powered,used in Digital Camera,LAN switches.DRAM(Dynmic random Access Memory )Most common RAM,require to refresh after little intervels of for few millisecound for retaining data,use capacitor and transister for storage cells.Capciter losses electric charges quickly ,need to charge .Slower than SRAM.DRDRAM(Direct Rhambus DRAM)SDRAM(Synchronus RAM)SRAM(Static RAM) used as cache memory.

Primary Storage /Internal Storage:Store data which are in current use.Secoundary sorage /Auxillary storgae:store data which are not in current use.Under secondary storage comes->Floppy disk drive>Hard disk: invented in 1950,no.of mettallic disc mounted on a spindle that rotate at speed of 3600-7200 RPM .Huge storage.Immovable>CD-ROM-optical disc:most popular and least expensive device.CD-ROM-read onlyCD-R/W-read and writeDVD-Digital versatil disk/digital video disk:Bit---------------------0 or 1Nibble-----------------4 bitByte---------------------8 bitKB(kilo Byte)------1024 bitMG(mega byte)----1024 KBGB(Gega Byte)----1024 MBTB(Tera Byte)-----1024 GBPB(Penta Byte)----1024 TbEB(Exa Byte)-----1024 PBProcessing Devices:has 3 unit ieALU(Arthmatic Logic unit):Microprocessor :does some rough work during processing ,thiss space for rough is callled as Register

Memory on Motherboard -RAM,Cache,Primary and secoundary storageMemory on Microprocessor-RegisterMicroprocessor and co-processor on mother board resides on motherboard.

Operating System(OS)OS interface apllication with mechineOS is system software,provide easy to use command to user,Ist operating system automated the loading,compiling and assembling also do job transition and job sequencing ,It was K/A Batch OSOS responsible for:controlling input and out putdirecting flow of information to and from processorwhen computer start from scratch at time of booting,OS is first things that is loaded.OS checks all memory ,display error in case of problemApllication software need OS to make hardware do what user desire.OS work in Back groundIt manage all files ,directeries access permission on the files .It memory allotment when user open application.

Types of OS on basis of User point of View1-single Program Os-Only one user programme resides in memory at time.EX-CP/M-for 8 bi micro-computer.2-Multiprogramming OS-Multi programme stored in memory at same time,but one programme at a time is processed.Memory managment is needed.Paging is very popular memory managment.Main memory brakes into pages frame.Programme brakes into pages.OS allocate 1 or 2 pages frames to pages (depending on the size of the page).Pages are brought into main memory as and when required so at time memory appears than its hardware capacity this illusion is caled as Virtual Memory and process called as demand paging.3-Time sharing OS:Its type of Multiprogramming.Several user residing in main memory and CPU switched B/w them rapidly .CPU shared among several user prog.and each one allocated a fixed time K/a time sharing systemsystem have special device K/A TunerProg.have to wait but CPU fully utilized K/A round robi SchedulingPaging and dynmic paging technique used.4-Multi-Processor Os: more than one processor with common memoryAllows parallelism ie several instruction has to be executed simultenously:::5-Virtual storage Os: incorporate demand paging for main memory.Large and expensive.6-Real Time OS : Used in Airtraffic control system,patient monitoring.Have rapid response and reliable.

Commonly used OSWindows: Microsoft,Graphical interface,expansion of MS-DOS,Multi-tasking OSfrom 4th verion ie Window 95 its independent from MS-DOSWindow NT-used in Networking.UNIX_-Devloped by AT and T Beu Lab in 1969Not GUI typeMuti-programing ,multitasking,multiuser, cryptic,userfrandily,very secure,2 agencies work for it -Kernel-K-interect with mechineShell-interface B/W user and kernel.OS/2:Devloped by IBMfor mainframe32 bitfaster than DOS,suitable for multimediamultitasking,networkingMS-DOS:version 3.2,4.0 etcsingle usernon GUICP/M(control programme /micro-computer)most commonly used OS for 8 bit intel 8080 or Zilog microprocessor.OS used in Mobile deviceIos:AppleWindow:MicrosftAndroid:Google,open source,Linux basedRIM:BlackberyWeb Os: from HP,devloped by PALM,Linux basedBADA:samsungLinux:open source

COMMON COMPUTER LANGUAGE:Programming language is a medium through which instruction when given to computer makes computer follow them,This sequence of instruction is called as Programme.Different languges are1-Pascal:Syntax-surface form of any language.Semantics-meaning of language.2-C Language:3-COBAL (Common business Language)4-FORTAN(formulla Translator5-Basics(Beginners all purpose symbolic instruction)6-C++- objective oriented programming(opp)7-Java-OPP

Mechine Language:Directly understood by computerOnly binary system usednot easy to understandcompiller-convert certain language to mechine langugeEvery computer has its own binary code.Assembly Language: 2nd genration Languagelow level langugemost appropriate for writing OSHigh level language:have low tendency to produce bugs(errors),Debugging-correction of error.1st Genration-0 1 binary digits.2nd genration-use symbolic names instead of just no.s3rd Generation-use words instead of just number and symbols.Has syntex much easier to understandhigh level languageEx-c.c++ Java.java scripts,4th Genration -close to human languageused to access and include SQ2 and cold fusion ,among others5th Genration-used for neuronal networkform of artificial intelligenceWeb languages used for creating webpages.HTML-hypertext markup languagexml-extenseble markup languageJavscipts-for animationVB scripts-visual basic sripts,Ex-Internet explorerPHP-hypertext preprocessorJava- SHAPES OF COMPUTERS1-Supercomputer-most powerfull,largest,perform 1 trillion calculation /Secneed lots of power and coolingexpensiveused for scientific workEx-K-computer-Japan- speed 8.162 PentaflopsTiahe-1A -China-speed 2.57 pentaflopsCray XT-5 Jaguar-USA-Speed 1.75 pentaflops2-Mainframe computer:Largest commony used computer,Used in Banking and insurance sectorUsed where same data are access again anad againused as server for wwwcomputer terminal (Doesnt have CPU) wired to mainfameLargest Mainframe EX IBM S/390-can support 5000 user simultanously3-Minicomputer:Capabilties lies in B/W Mainframe and Midrange computerHandle much more I/O(Input Output) than PCcan be used as web serverused in animation work

can attach 500 user simultanously4-Workstation :lies in B/W Midrange and PChave sophosticated software like CAM,CADOS used in it are UNIX,Window NTEx-SPARC(From SUN),IBM RS/60005-Personal computer invented in 1970,small and enexpensiveK/A microcomputersingle useduse microprocessorFirst Pc Apple II,IBM PC6-Net book-lightwt less than 6 pound7-Laptop-fit in your lap8-Handheld computer-PIN(Personal information manager)PDA(personal digital assistant),Palmtop

ConnectivityOSI Refrence: International Standerd OrganizationSeven Layer model Each layer perform single activityapplication layer:Interface between computer and userpresentation Layer:Covert text into binary or encryptist,puts wrpper or header on datasession layer:Deciedes which rule/protocol followed for transmission.Transport :assures correct transmission of data,receipent send acknowldgement to this layerNetwork:segment data into packets.Network head started and role of Hardware startData Link: brakes packets in framesPhysical: encodes 0 and 1 to +,- voltageTCP/IP Refrence model: Internet was based on TCP/IP refrence modelIt has following layersTransport layer: same as OSI, Two protocol ,only one protocol work at a time.a)TCP(Transmission control protocol) >reliable connection oriented protocol.>Assures bytes stream (data from)one mechine to another without any error.>divides data into packets and rejoin it at distination>control flow of data.b)UDP(user data gram protocol):>unreliable>just transmit data>no error or control flow handling>used when time delivery is importent ,Ex Video confrencing.2-Application layer:all higher level protocola)Telnet(virtual terminal Protocol)It helps user one mechine to log into distant mechine and work here.b)FTP(file transfer protocol)c)SMTP(simple mail transfer protocol) used in E maild)DNS(domain name system) mapping host on their net addressese)NNTPf)HTTP-to fetch pages on www

There are 6 types of networks1 -Mesh Topology:Every computer is connected to others.Have high fault tolerenceexpensive2 -star Topology : every node is connected to centrall nodeserver fails -network failseasy to install,wire and troubleshoot3 -Tree Topology-One star topology connected to other via HUB4 -Bus Topology-5 -Ring Topology

Security issue of Internet:is of following typesInsecurity:1)loss of missing data2)data read by unauthorized PERSONAL3)you may receive dirty datasolution :1)Missing Data:least harmfil solution is retransmission2)Unauthorized access:called as hackingsolution is called as access control mechanism iea)passoword varficationb) encryption3)Dirty Data: They are of folowing typesa)TROJANS:Programme appear normal but carrying destructive payload.b)stealth Virus:a train virus that is the fastest in replication and relocationc)Virus:is of following types1>Boot Infecters:reside in boot secter,take complete control over system2>System Infecters-destroy Operating system,attach to command .com file,slow down computer3>exe infectersolution is- ------ to dectet them before entry ie by firewall(check outgoing and incoming information) or by antivirus---cure the infected portiond)Worm:are similar to virus ,but they differ from virus in following points.>It has capabilties to travel to another computer without human activites.>It have capabilty of replication.

COMPUTER QUESTIONS ASKED IN EXAMS1. A ___ system is a small, wireless handheld computer that scans an item’s tag & pulls up the current price as you shop. – PSS2. ___ is the science that attempts to produce machines that display the same type of intelligence that humans do. – AI (ARTIFICIAL INTELLIGENCE)3. In Analog Computer – Input is never converted to digital form4. In latest generation computers, the instructions are executed – Both Sequentially & Parallel.5. Who designed the First electronics computer – VAN-NEUMANN

6. When did the arch rivals IBM & APPLE COMPUTERS INC. decide to join hands? – 19917. Human beings are referred to as HOMOSAPINENS, which device is called SILICO SAPIENS. – COMPUTER8. What is meant by Dedicated Computer? – which is assigned one & only one task9. A computer with CPU speed around 100 million instruction per second & with the word length of around 64 bits is known as – SUPER COMPUTER10. A HYBRID COMPUTER – Resembles both a Digital & Analog Computer11. The personal computer industry was started by – IBM12. In the IBM PC-At, what do the words AT stand for – Advance Technology13. Number Crunchier is the information name for – SUPER COMPUTER14. Which company is the biggest player in the MICROPROCESSOR industry? – INTEL15. The FIRST MICROPROCESSOR built by the INTEL CORPORATION was called - 400416. Who invented the MICROPROCESSOR – MARCIAN E HUFF17. SYMBOLIC LOGIC was discovered by – GEORGE BOOLE18. What was the nick name of the computer used by the Americans in 1952 for their H-BOMB project? – MANIAC19. Which was the most popular first generation computer? – IBM 165020. IBM 7000 DIGITAL COMPUTER – has Modular constructions

21. In ANALOG COMPUTER – Input is never converted to Digital form22. The digital computer was developed primarily in – USA23. The computer that process both Analog & Digital is called – HYBRID COMPUTER24. Who built the WORLD’S FIRST ELECTRONIC CALCULATOR using telephone relays, light bulbs & batteries – GEORGE STIBITS25. The first computers were programmed using – ASSEMBLY LANGUAGE26. Which was the WORLD’S FIRST MINICOMPUTER & when was it introduced? – PDP-1, 195827. The FIRST ELECTRONIC COMPUTER in the World was – ENIAC28. Where was INDIA’S FIRST COMPUTER installed & when? – INDIAN IRON & STEEL CO. LTD., 196829. When was the WORLD’S FIRST LAPTOP COMPUTER introduced in the market & by whom? – EPSON, 198130. The first electronic general purpose digital computer built by MOTLEY & ACCRETE called ENIAC did not work on the stored program concept. How many numbers could it store in its internal memory? - 2031. IBM launched its first personal computer called IBM-PC in 1981. It had chips from Intel, Disk drives from Tandon, Operating System from Microsoft, the Printer from Epson & the Application Software from everywhere. Can you name the country which contributed the video display? – TAIWAN32. Which was the computer conceived by Babbage? – DONALD KNUTH33. Which American Computer Company is called BIG BLUE? – IBM34. Most of the inexpensive personal computer does not have any disk or diskette drive. What is the name of such computers? – HOME COMPUTERS35. --- are specially designed computer chips that reside inside other devices, such as your

car or your electronic thermostat. – EMBEDDED COMPUTERS36. The term associated with the comparison of processing speeds of different computer system is: MIPS37. Chief component of FIRST GENERATION COMPUTER was – VACUUM TUBES & VALVES38. SECOND GENERATION COMPUTERS were developed during – 1956 to 196539. In the THIRD GENERATION of computers – Online Real Time Systems first become popular

40. Microprocessors as switching devices are for which generation computers – FOURTH GENERATION41. Which Generation of computer is still under development – FIFTH GENERATION42. ARTIFICIAL INTELLIGENCE is associated with which generation? – FIFTH GENERATION43. FIFTH GENERATION computer is also known as – KNOWLEDGE INFORMATION PROCESSING SYSTEM44. The first firm to mass market a microcomputer as a personal computer was – RADIO SHANKS45. A digital computer did not score over an analog computer in terms of – Accuracy46. Analog computer works on the supply of – Electrical pulses but not continuous47. In 1830, CHARLES BABBAGE designed a machine called the ANALYTICAL ENGINE, which he showed at the parts exhibition. In which year was it exhibited? – 185548. The primary goal of a computer system is to turn data into – Information49. To make the NUMBER PAD act as directional arrows, you press the --- key – NUM LOCK50. To access a Mainframe or Super Computer, users often use a – TERMINAL51. The output quality of a printer is measured by – DOT PER SQUARE INCH52. An error in software or hardware is called BUG. What is the alternative computer jargon for it? – GLITCH53. What is the name of the display feature that highlights are of the screen which requires operator attention? – REVERSE VIDEO54. What is the name of the computer terminal which gives paper printout? – HARD COPY TERMINAL55. Which printer is very commonly used for Desktop Publishing? – LASER PRINTER56. What is the responsibility of the LOGICAL UNIT in the CPU of a computer? – TO COMPARE NUMBERS57. Which of the printers used in conjunction with computers uses DRY INK POWDER? – LASER PRINTER58. Another word for a DAISY WHEEL PRINTER – GOLF BALL PRINTER59. The storage capacity of a disk system depends on the bits per inch of track & the tracks per inch of – SURFACE60. The number of records contained within a block of data on magnetic tape is defined by – BLOCKING FACTOR

61. The disk drive component used to position read / write heads over a specific track 1 known as – ACCESS ARM

62. A storage device where the access time is depended upon the location of the data is – SERIAL ACCESS63. A physical connection between the microprocessor memory & other parts of the micro-computer is known as – ADDRESS BUS64. Who is credited with the idea of using punch cards to control patterns of a weaving machine? – JACQUARD65. One of the main feature that distinguish microprocessors from micro-computers is – Microprocessor does not contain I / O devices66. The FIRST MACHINE to successfully perform a LONG SERIES OF Arithmetic & Logical operations was – MARK -167. Different components in the Motherboard of a PC unit are linked together by sets of PARALLEL ELECTRICAL CONDUCTING LINES. What are these lines called? – BUSES68. What is the main folder on a storage device called? – ROOT DIRECTORY69. A SERIES 100 POST error code indicates a problem with the – SYSTEM BOARD70. The time it takes a device to locate data & instructions & make them available to the CPU is known as – A PROCESSING CYCLE71. You can use the TAB KEY to – Move a cursor across the screen & indent a paragraph72. The hardware device that acts as both a SWITCHING & CONNECTING UNIT is called a – MULTIPLEXER73. The device that assembles groups of characters into complete messages prior to their entering the CPU is called – A communication processor74. What is the name of the logic circuit which can add two binary digits – HALF ADDER75. The subsystem of the kernel & hardware that cooperates to translate virtual to physical addresses comprises – MEMORY MANAGEMENT SUBSYSTEM76. Which of the following memories has the shortest access times? – CACHE MEMORY77. A method of implementing a memory management system is – BUDDY SYSTEM78. The person contributing the idea of the stored program was – JOHN NEUMANN79. The term bit is short for – Binary digit80. What is correcting errors in a program called – DEBUGGING

Questions Asked in Previous Exams1. Which is Computer Memory that does not forget ?Ans: ROM

2. The computer memory holds data and ?Ans: program

3. What is means by term RAM ?Ans: Memory which can be both read and written to

4. Which computer memory is esentially empty ?Ans: RAM

5. The bubbles in a bubble memory pack are created with the help of ?Ans: magnetic field

6. Virtual memory is -Ans: an illusion of an extremely large memory

7. Special locality refers to the problem that once a location is referencedAns: a nearby location will be referenced soon

8. An example of a SPOOLED deviceAns: A line printer used to print the output of a number of jobs

9. Page faults occurs whenAns: one tries to divide a number by 0

10. Overlay isAns: a single contiguous memory that was used in the olden days for running large programs by swapping

Questions Asked in Previous Exams11. Concurrent processes are processes that -Ans: Overlap in time

12. The page replacement policy that sometimes leads to more page faults when the size of the memory is increased is -Ans: FIFO

13. The only state transition that is initiated by the user process itself is -Ans: Block

14. Fragmentation is -Ans: fragments of memory words unused in a page

15. Give Example of real time systemsAns: Aircraft control system, A process control system

16. Dijkstra’s banking algorithm in an operating system solves the problem of -Ans: Deadlock Avoidance

17. In a paged memory system, if the page size is increased, then the internal fragmentation generally -Ans: Becomes more

18. An operating system contains 3 user processes each requiring 2 units of resources R. The minimum number of units of R such that no deadlock will ever occur is -Ans: 4

19. Critical region is -Ans: A set of instructions that access common shared resources which exclude one another in time

20. Kernel is -Ans: The set of primitive functions upon which the rest of operating system functions are built up

Questions Asked in Previous Exams21. Necessary conditions for deadlock are -Ans: Non-preemption and circular wait, Mutual exclusion and partial allocation

22. In a time sharing operating system, when the time slot given to a process is completed, the process goes from the RUNNING state to the -Ans: READY state

23. Supervisor call -Ans: Are privileged calls that are used to perform resource management functions, which are controlled by the operating system

24. Semaphores are used to solve the problem of -Ans: Mutual exclusion, Process synchronization

25. If the property of locality of reference is well pronounced in a program-Ans: The number of page faults will be less26. Pre-emptive scheduling, is the strategy of temporarily suspending a running process-Ans: before the CPU time slice expires

27. Mutual exclusion problem occurs -Ans: among processes that share resources

27. Sector interleaving in disks is done by -Ans: the operating system

28. Disk scheduling involves deciding-Ans: the order in which disk access requests must be serviced

29. Dirty bit is used to show the -Ans: page that is modified after being loaded into cache memory

30. Fence register is used for-Ans: memory protection.

Questions Asked in Previous Exams31. The first-fit, best-fit and worst-fit algorithm can be used for-Ans: contiguous allocation of memory

32. Give example of single-user operating systems-Ans: MS-DOS, XENIX

33. In Round Robin CPU Scheduling, as the time quantum is increased, the average turn around time-Ans: varies irregulary

34. In a multiprogramming environment-Ans: more than one process resides in the memory

35. The size of the virtual memory depends on the size of the -Ans: Address Bus

36. Give example of Scheduling Policies in which context switching never take place-Ans: Shortest Job First, First-cum-first-served

37. Suppose that a process is in ‘BLOCKED’ state waiting for some I/O service. When the service is completed, it goes to the-Ans: READY State

38. Which of the following is a part of the Central Processing Unit? [Ans d]a. Printerb. Key boardc. Moused. Arithmetic & Logic unite. None

39. Which of the following printer cannot print graphics? [Ans b]a. Ink-jetb. Daisy Wheelc. Laserd. Dot-matrixe. None

40. The linking of computers with a communication system is called [Ans a]a. Networkingb. Pairingc. Interlockingd. Assemblinge. Sharing Questions Asked in Previous Exams1. Memory, also called random access memory, or RAM……….(A) contains the electronic circuits that cause processing to occur(B) makes the information resulting from processing available for use(C) allows data, programs, commands, and user responses to be entered into a computer(D) consists of electronic components that store data

(E) None of theseAns : (D)

2. The basic goal of computer process is to convert data into……(A) information(B) tables(C) files(D) graphs(E) None of theseAns : (A)

3. A hard copy of a document is …(A) stored in the hard disk(B) stored on a floppy(C) stored on a CD(D) printed on the printer(E) None of theseAns : (D)

4. Which keys can be used together with other keys for special tasks ?(A) Insert, Delete(B) Ctrl, Shift(C) Left Arrow, Right Arrow(D) Page up, Page Down(E) None of theseAns : (B)

5. Which is the part of a computer that one can touch and feel ?(A) Programs(B) Software(C) Hardware(D) Output(E) None of theseAns : (C)

6. Computers gather data, which means they allow users to…… data.(A) present(B) store(C) output(D) input(E) None of theseAns : (D)

7. Which of the following is not the major function of a computer ?(A) Processing data into information

(B) Storing data or information(C) Gathering data(D) Analysing data or information(E) None of theseAns : (D)

8. Allows you to print……(A) ribbon(B) monitor(C) go now(D) Control-P(E) None of theseAns : (D)

9. When your computer stops working suddenly, it is referred to as a……(A) crash(B) die(C) death(D) penalty(E) None of theseAns : (E)

10. The smallest item of useful information a computer can handle…(A) bite(B) byte(C) bit(D) bait(E) None of theseAns : (C)

Questions Asked in Previous Exams11. Devices that let the computer communicate with you……(A) input(B) output(C) type(D) print(E) None of theseAns : (B)12. Devices that allow you to put information into the computer ……(A) input(B) output(C) type(D) print(E) None of theseAns : (A)13. Eight bits of data……

(A) octabit(B) word(C) sentence(D) byte(E) None of theseAns : (D)14. The different styles of lettering in a word processing program……(A) font(B) calligraphy(C) writing(D) manuscript(E) None of theseAns : (A)15. A symbol or question on the screen that prompts you to take action and tell the computer what to do next……(A) scanner(B) questionnaire(C) prompt and dialog box(D) information seeker(E) None of theseAns : (C)16. Instructions that tell the computer what to do. Another name for software……(A) programs(B) CPU(C) options(D) folder(E) None of theseAns : (A)17. A program which helps create written documents and lets you go back and make corrections as necessary……(A) spreadsheet(B) personal writer(C) word printer(D) word processor(E) None of theseAns : (D)18. Start or restart the computer……(A) exit(B) kick(C) boot(D) kick-start(E) None of theseAns : (C)19. Commands at the top of a screen such as : FILE-EDIT-FONT-TOOLS to operate and change things within programs……(A) menu bar

(B) tool bar(C) user friendly(D) word processor(E) None of theseAns : (A)20. CD-ROM stands for……(A) central processing unit(B) CD-remote open mouse(C) CD-resize or minimize(D) CD-read only memory(E) None of theseAns : (D)

Questions Asked in Previous Exams21. To insert a copy of the clipboard contents, whatever was last cut or copied at the insertion point……(A) paste(B) stick in(C) fit in(D) push in(E) None of theseAns : (A)

22. The command used to remove text or graphics from a document. The information is then stored on a clipboard so you can paste it.(A) chop(B) cut(C) clip(D) cart away(E) None of theseAns : (B)

23. A removable magnetic disc that holds information……(A) floppy disk(B) hard drive(C) monitor(D) portable(E) None of theseAns : (B)

24. A program that works like a calculator for keeping track of money and making budgets……(A) calculator(B) spreadsheet(C) budgeter(D) financier

(E) None of theseAns : (B)25. A………typically connects personal computers within a very limited geographical area, usually within a single building.(A) LAN(B) BAN(C) TAN(D) NAN(E) None of theseAns : (A)

26. Computers manipulate data in many ways, and this manipulation is called—(A) utilizing(B) batching(C) upgrading(D) processing(E) None of theseAns : (D)

27. Software applies……, also called algorithms, to process data.(A) arithmetic(B) procedures(C) objects(D) rules(E) None of theseAns : (A)

28. A file extension is separated from the main file name with a(n) ……, but no spaces.(A) question mark(B) exclamation mark(C) underscore(D) period(E) None of theseAns : (E)

29. A(n)………camera is a peripheral device used to capture still images in a digital format that can be easily transferred into a computer and manipulated using graphics software.(A) digital(B) analog(C) classic(D) film(E) None of theseAns : (A)

30. Application software is designed to accomplish—(A) real-world tasks

(B) computer-centric tasks(C) gaming tasks(D) operating system tasks(E) None of theseAns : (D)

Questions Asked in Previous Exams31. A ……… computer (also referred to as a laptop), is a small, lightweight personal computer that incorporates the screen, the keyboard, storage, and processing components into a single portable unit.(A) notebook(B) journal(C) diary(D) briefcase(E) None of theseAns : (A)

32. ……… is the result produced by a computer.(A) Data(B) Memory(C) Output(D) Input(E) None of theseAns : (C)

33. Programs such as Internet Explorer that serve as navigable windows into the Web are called—(A) Hypertext(B) Networks(C) Internet(D) Web browsers(E) None of theseAns : (D)

34. A ……… is a device that not only provides surge protection, but also furnishes your computer with battery backup power during a power outage.(A) surge strip(B) USB(C) UPS(D) battery strip(E) None of theseAns : (C)

35. The motherboard is the—(A) circuit board that houses peripheral devices

(B) same as the CPU chip(C) the first chip that is accessed when the computer is turned on(D) circuit board that contains a CPU and other chips(E) None of theseAns : (D)

36. A computer-intensive problemruns on a—(A) server(B) main frame(C) supercomputer(D) super PC(E) None of theseAns : (C)

37. Approximately how many bytes make one megabyte ?(A) One thousand(B) Ten thousand(C) One hundred(D) One million(E) None of theseAns : (D)

38. All the deleted files go to—(A) Recycle Bin(B) Task Bar(C) Tool Bar(D) My Computer(E) None of theseAns : (A)39. Which is the best definition of a software package ?(A) An add-on for your computer such as additional memory(B) A set of computer programs used for a certain function such as word processing(C) A protection you can buy for a computer(D) The box, manual and license agreement that accompany commercial software(E) None of theseAns : (B)

40. In MICR, C stands for ……….(A) Code(B) Colour(C) Computer(D) Character(E) None of theseAns : (D)

Questions Asked in Previous Exams

1. All of the following are examples of real security and privacy risks EXCEPT:A. hackers.B. spam.C. viruses.D. identity theft.Answer: B

2. A process known as ____________ is used by large retailers to study trends.A. data miningB. data selectionC. POSD. data conversionAnswer: A

3. ____________terminals (formerly known as cash registers) are often connected tocomplex inventory and sales computer systems.A. DataB. Point-of-sale (POS)C. SalesD. QueryAnswer: B

4. A(n) ____________ system is a small, wireless handheld computer that scans anitemâ€™s tag and pulls up the current price (and any special offers) as you shop.A. PSSB. POSC. inventoryD. data miningAnswer: A

5. The ability to recover and read deleted or damaged files from a criminalâ€™scomputer is an example of a law enforcement specialty called:A. robotics.B. simulation.C. computer forensics.D. animation.Answer: C

6. Which of the following is NOT one of the four major data processing functions of acomputer?A. gathering dataB. processing data into informationC. analyzing the data or informationD. storing the data or informationAnswer: C

7. ____________ tags, when placed on an animal, can be used to record and track in adatabase all of the animalâ€™s movements.A. POSB. RFIDC. PPSD. GPSAnswer: B

8. Surgeons can perform delicate operations by manipulating devices through computersinstead of manually. This technology is known as:A. robotics.B. computer forensics.C. simulation.D. forecasting.Answer: A

9. Technology no longer protected by copyright, available to everyone, is considered tobe:A. proprietary.B. open.C. experimental.D. in the public domain.Answer: A

10. ____________ is the study of molecules and structures whose size ranges from 1 to100 nanometers.A. NanoscienceB. MicroelectrodesC. Computer forensicsD. Artificial intelligenceAnswer: A

Questions Asked in Previous Exams11. ____________ is the science that attempts to produce machines that display the sametype of intelligence that humans do.A. NanoscienceB. NanotechnologyC. SimulationD. Artificial intelligence (AI)Answer: D

12. ____________ is data that has been organized or presented in a meaningful fashion.A. A processB. SoftwareC. StorageD. Information

Answer: D

13. The name for the way that computers manipulate data into information is called:A. programming.B. processing.C. storing.D. organizing.Answer: B

14. Computers gather data, which means that they allow users to ____________ data.A. presentB. inputC. outputD. storeAnswer: B

15. After a picture has been taken with a digital camera and processed appropriately, theactual print of the picture is considered:A. data.B. output.C. input.D. the process.Answer: B

16. Computers use the ____________ language to process data.A. processingB. kilobyteC. binaryD. representationalAnswer: C

17. Computers process data into information by working exclusively with:A. multimedia.B. words.C. characters.D. numbers.Answer: D

18. In the binary language each letter of the alphabet, each number and each specialcharacter is made up of a unique combination of:A. eight bytes.B. eight kilobytes.C. eight characters.D. eight bits.Answer: D

19. The term bit is short for:A. megabyte.B. binary language.C. binary digit.D. binary number.Answer: C

20. A string of eight 0s and 1s is called a:A. megabyte.B. byte.C. kilobyte.D. gigabyte.Answer: B

Questions Asked in Previous Exams21. A ____________ is approximately one billion bytes.A. kilobyteB. bitC. gigabyteD. megabyteAnswer: C22. A ____________ is approximately a million bytes.A. gigabyteB. kilobyteC. megabyteD. terabyteAnswer: C23. ____________ is any part of the computer that you can physically touch.A. HardwareB. A deviceC. A peripheralD. An applicationAnswer: A24. The components that process data are located in the:A. input devices.B. output devices.C. system unit.D. storage component.Answer: C25. All of the following are examples of input devices EXCEPT a:A. scanner.B. mouse.C. keyboard.D. printer.Answer: D26. Which of the following is an example of an input device?

A. scannerB. speakerC. CDD. printerAnswer: A27. All of the following are examples of storage devices EXCEPT:A. hard disk drives.B. printers.C. floppy disk drives.D. CD drives.Answer: B28. The ____________, also called the â€oebrainsâ€ of the computer, is responsible forprocessing data.A. motherboardB. memoryC. RAMD. central processing unit (CPU)Answer: D29. The CPU and memory are located on the:A. expansion board.B. motherboard.C. storage device.D. output device.Answer: B30. Word processing, spreadsheet, and photo-editing are examples of:A. application software.B. system software.C. operating system software.D. platform software.Answer: A

Questions Asked in Previous Exams31. ____________ is a set of computer programs used on a computer to help performtasks.A. An instructionB. SoftwareC. MemoryD. A processorAnswer: B

32. System software is the set of programs that enables your computerâ€™s hardwaredevices and ____________ software to work together.A. managementB. processingC. utilityD. application

Answer: D

33. The PC (personal computer) and the Apple Macintosh are examples of two different:A. platforms.B. applications.C. programs.D. storage devices.Answer: A

34. Apple Macintoshes (Macs) and PCs use different ____________ to process data anddifferent operating systems.A. languagesB. methodsC. CPUsD. storage devicesAnswer: C

35. Servers are computers that provide resources to other computers connected to a:A. network.B. mainframe.C. supercomputer.D. client.Answer: A

36. Smaller and less expensive PC-based servers are replacing ____________ in manybusinesses.A. supercomputersB. clientsC. laptopsD. mainframesAnswer: D

37. ____________ are specially designed computers that perform complex calculationsextremely rapidly.A. ServersB. SupercomputersC. LaptopsD. MainframesAnswer: B

38. DSL is an example of a(n) ____________ connection.A. networkB. wirelessC. slowD. broadbandAnswer: D

39. The difference between people with access to computers and the Internet and thosewithout this access is known as the:A. digital divide.B. Internet divide.C. Web divide.D. broadband divide.Answer: A

40. ____________ is the science revolving around the use of nanostructures to builddevices on an extremely small scale.A. NanotechnologyB. Micro-technologyC. Computer forensicsD. Artificial intelligenceAnswer: A

Questions Asked in Previous Exams41. Which of the following is the correct order of the four major functions of a computer?A. Process Ã Output Ã Input Ã StorageB. Input Ã OutputÃ Process Ã StorageC. Process Ã Storage Ã Input Ã OutputD. Input Ã Process Ã Output Ã StorageAnswer: D

42. ____________ bits equal one byte.A. EightB. TwoC. One thousandD. One millionAnswer: A

43. The binary language consists of ____________ digit(s).A. 8B. 2C. 1,000D. 1Answer: B

44. A byte can hold one ____________ of data.A. bitB. binary digitC. characterD. kilobyteAnswer: C

45. ____________ controls the way in which the computer system functions and providesa means by which users can interact with the computer.A. The platformB. The operating systemC. Application softwareD. The motherboardAnswer: B

46. The operating system is the most common type of ____________ software.A. communicationB. applicationC. systemD. word-processing softwareAnswer: C

47. ____________ are specially designed computer chips that reside inside other devices,such as your car or your electronic thermostat.A. ServersB. Embedded computersC. Robotic computersD. MainframesAnswer: B

48. The steps and tasks needed to process data, such as responses to questions or clickingan icon, are called:A. instructions.B. the operating system.C. application software.D. the system unit.Answer: A

49. The two broad categories of software are:A. word processing and spreadsheet.B. transaction and application.C. Windows and Mac OS.D. system and application.Answer: D

50. The metal or plastic case that holds all the physical parts of the computer is the:A. system unit.B. CPU.C. mainframe.D. platform.Answer: A


1. All of the following are examples of real security and privacy risks EXCEPT:A. hackers.B. spam.C. viruses.D. identity theft.Answer: B


3. ____________terminals (formerly known as cash registers) are often connected to complex inventory and sales computer systems.A. DataB. Point-of-sale (POS)C. SalesD. QueryAnswer: B

4. A(n) ____________ system is a small, wireless handheld computer that scans an itemâ€™s tag and pulls up the current price (and any special offers) as you shop.A. PSSB. POSC. inventoryD. data miningAnswer: A

5. The ability to recover and read deleted or damaged files from a criminalâ€™s computer is an example of a law enforcement specialty called:A. robotics.B. simulation.C. computer forensics.D. animation.Answer: C

6. Which of the following is NOT one of the four major data processing functions of a computer?A. gathering dataB. processing data into informationC. analyzing the data or informationD. storing the data or informationAnswer: C

7. ____________ tags, when placed on an animal, can be used to record and track in a database

all of the animalâ€™s movements.A. POSB. RFIDC. PPSD. GPSAnswer: B

8. Surgeons can perform delicate operations by manipulating devices through computers instead of manually. This technology is known as:A. robotics.B. computer forensics.C. simulation.D. forecasting.Answer: A

9. Technology no longer protected by copyright, available to everyone, is considered to be:A. proprietary.B. open.C. experimental.D. in the public domain.Answer: A

10. ____________ is the study of molecules and structures whose size ranges from 1 to 100 nanometers.A. NanoscienceB. MicroelectrodesC. Computer forensicsD. Artificial intelligenceAnswer: A

Questions Asked in Previous Exams11. ____________ is the science that attempts to produce machines that display the same type of intelligence that humans do.A. NanoscienceB. NanotechnologyC. SimulationD. Artificial intelligence (AI)Answer: D

12. ____________ is data that has been organized or presented in a meaningful fashion.A. A processB. SoftwareC. StorageD. InformationAnswer: D



15. After a picture has been taken with a digital camera and processed appropriately, the actual print of the picture is considered:A. data.B. output.C. input.D. the process.Answer: B



18. In the binary language each letter of the alphabet, each number and each special character is made up of a unique combination of:A. eight bytes.B. eight kilobytes.C. eight characters.D. eight bits.Answer: D

19. The term bit is short for:

A. megabyte.B. binary language.C. binary digit.D. binary number.Answer: C


Questions Asked in Previous Exams21. A ____________ is approximately one billion bytes.A. kilobyteB. bitC. gigabyteD. megabyteAnswer: C22. A ____________ is approximately a million bytes.A. gigabyteB. kilobyteC. megabyteD. terabyteAnswer: C23. ____________ is any part of the computer that you can physically touch.A. HardwareB. A deviceC. A peripheralD. An applicationAnswer: A24. The components that process data are located in the:A. input devices.B. output devices.C. system unit.D. storage component.Answer: C25. All of the following are examples of input devices EXCEPT a:A. scanner.B. mouse.C. keyboard.D. printer.Answer: D26. Which of the following is an example of an input device?

A. scannerB. speakerC. CDD. printerAnswer: A27. All of the following are examples of storage devices EXCEPT:A. hard disk drives.B. printers.C. floppy disk drives.D. CD drives.Answer: B28. The ____________, also called the â€œbrainsâ€ of the computer, is responsible for �processing data.A. motherboardB. memoryC. RAMD. central processing unit (CPU)Answer: D29. The CPU and memory are located on the:A. expansion board.B. motherboard.C. storage device.D. output device.Answer: B30. Word processing, spreadsheet, and photo-editing are examples of:A. application software.B. system software.C. operating system software.D. platform software.Answer: A Questions Asked in Previous Exams31. ____________ is a set of computer programs used on a computer to help perform tasks.A. An instructionB. SoftwareC. MemoryD. A processorAnswer: B

32. System software is the set of programs that enables your computerâ€™s hardware devices and ____________ software to work together.A. managementB. processingC. utilityD. applicationAnswer: D

33. The PC (personal computer) and the Apple Macintosh are examples of two different:A. platforms.B. applications.C. programs.D. storage devices.Answer: A

34. Apple Macintoshes (Macs) and PCs use different ____________ to process data and different operating systems.A. languagesB. methodsC. CPUsD. storage devicesAnswer: C

35. Servers are computers that provide resources to other computers connected to a:A. network.B. mainframe.C. supercomputer.D. client.Answer: A

36. Smaller and less expensive PC-based servers are replacing ____________ in many businesses.A. supercomputersB. clientsC. laptopsD. mainframesAnswer: D

37. ____________ are specially designed computers that perform complex calculations extremely rapidly.A. ServersB. SupercomputersC. LaptopsD. MainframesAnswer: B

38. DSL is an example of a(n) ____________ connection.A. networkB. wirelessC. slowD. broadbandAnswer: D

39. The difference between people with access to computers and the Internet and those without this access is known as the:A. digital divide.B. Internet divide.C. Web divide.D. broadband divide.Answer: A

40. ____________ is the science revolving around the use of nanostructures to build devices on an extremely small scale.A. NanotechnologyB. Micro-technologyC. Computer forensicsD. Artificial intelligenceAnswer: A





45. ____________ controls the way in which the computer system functions and provides a

means by which users can interact with the computer.A. The platformB. The operating systemC. Application softwareD. The motherboardAnswer: B


47. ____________ are specially designed computer chips that reside inside other devices, such as your car or your electronic thermostat.A. ServersB. Embedded computersC. Robotic computersD. MainframesAnswer: B

48. The steps and tasks needed to process data, such as responses to questions or clicking an icon, are called:A. instructions.B. the operating system.C. application software.D. the system unit.Answer: A




51. Between PCs and Macs, the ____________ is the platform of choice for graphic design and animation.Answer: Mac

52. The ____________ is the program that manages the hardware of the computer system, including the CPU, memory, storage devices, and input/output devices.Answer: operating system

53. The type of operating system software you use depends on your computerâ€™s ____________.Answer: platform

54. ____________software helps you carry out tasks, such as typing a document or creating a spreadsheet.Answer: Application

55. ____________are the fastest and most expensive computers.Answer: Supercomputers

56. A ____________ is approximately 1,000 bytes.Answer: kilobyte

57. Input devices are used to provide the steps and tasks the computer needs to process data, and these steps and tasks are called ____________.Answer: instructions

58. A computer gathers data, processes it, outputs the data or information, and ____________ the data or information.Answer: stores

59. The binary language consists of two digits: ____________ and ____________.Answer: 0 and 1

60. A string of ____________ 0s and 1s is called a byte.Answer: eight (8)

Questions Asked in Previous Exams61. The devices you use to enter data into a computer system are known as ____________ devices.Answer: input

62. The devices on a computer system that let you see the processed information are known as ____________ devices.Answer: output

63. ____________ is the set of computer instructions or programs that enables the hardware to

perform different tasks.Answer: Software

64. When you connect to the ____________, your computer is communicating with a server at your Internet service provider (ISP).Answer: Internet

65. ____________ are computers that excel at executing many different computer programs at the same time.Answer: Mainframes

66. ____________is the application of computer systems and techniques to gather legal evidence.Answer: Computer forensics

67. ____________ is the science that attempts to create machines that will emulate the human thought process.Answer: Artificial intelligence (AI)

68. Macintosh computers use the Macintosh operating system (Mac OS), whereas PCs generally run ____________ as an operating system.Answer: Microsoft Windows

69. A process known as ____________ tracks trends and allows retailers to respond to consumer buying patterns.Answer: data mining

70. Hard disk drives and CD drives are examples of ____________ devices.Answer: storage

Questions Asked in Previous Exams71. You would use ____________ software to create spreadsheets, type documents, and edit photos.Answer: application72. ____________ are computers that support hundreds or thousands of users simultaneously.Answer: Mainframes73. ____________ is the term given to the act of stealing someoneâ€™s identity and ruining their credit rating.Answer: Identity theft74. Surgeons are using ____________ to guide robots to perform delicate surgery.Answer: computers75. Patient ____________ are life-sized mannequins that have a pulse and a heartbeat and respond to procedures just like humans.Answer: simulatorsTrue and False

76. Currently, the performance of tasks by robots is based on preprogrammed algorithms.Answer: True77. Data can be a number, a word, a picture, or a sound.Answer: True78. Strictly defined, a computer is a data processing device.Answer: True79. The discrepancy between the â€œhavesâ€ and â€œhave-notsâ€ with regard to computer� � technology is commonly referred to as the digital society.Answer: False (digital divide)80. One of the benefits of becoming computer fluent is being a savvy computer user and consumer and knowing how to avoid viruses, the programs that pose threats to computer security.Answer: True

Questions Asked in Previous Exams81. Trend-spotting programs, developed for business, have been used to predict criminal activity.Answer: True

82. Employers do not have the right to monitor e-mail and network traffic on employee systems used at work.Answer: False

83. Clicking on an icon with the mouse is a form of giving an instruction to the computer.Answer: True

84. Output devices store instructions or data that the CPU processes.Answer: False (memory)

85. The CPU and memory are located on a special circuit board in the system unit called the motherboard.Answer: True

86. Nanostructures represent the smallest human-made structures that can be built.Answer: True

87. The main difference between a supercomputer and a mainframe is that supercomputers are designed to execute a few programs as quickly as possible, whereas mainframes are designed to handle many programs running at the same time (but at a slower pace).Answer: True

88. Being computer fluent means that you should be able to build a computer yourself.Answer: False

89. Embedded computers are self-contained computer devices that have their own programming and do not receive input.

Answer: True

90. A Web browser is a special device that is installed in your computer that allows it to communicate with other devices on a network.Answer: False (network adapter) Questions Asked in Previous Exams1. All of the following are examples of real security and privacy risks EXCEPT:A. hackers.B. spam.C. viruses.D. identity theft.Answer: B


3. ____________terminals (formerly known as cash registers) are often connected to complex inventory and sales computer systems.A. DataB. Point-of-sale (POS)C. SalesD. QueryAnswer: B

4. A(n) ____________ system is a small, wireless handheld computer that scans an itemâ€™s tag and pulls up the current price (and any special offers) as you shop.A. PSSB. POSC. inventoryD. data miningAnswer: A

5. The ability to recover and read deleted or damaged files from a criminalâ€™s computer is an example of a law enforcement specialty called:A. robotics.B. simulation.C. computer forensics.D. animation.Answer: C

6. Which of the following is NOT one of the four major data processing functions of a computer?

A. gathering dataB. processing data into informationC. analyzing the data or informationD. storing the data or informationAnswer: C

7. ____________ tags, when placed on an animal, can be used to record and track in a database all of the animalâ€™s movements.A. POSB. RFIDC. PPSD. GPSAnswer: B

8. Surgeons can perform delicate operations by manipulating devices through computers instead of manually. This technology is known as:A. robotics.B. computer forensics.C. simulation.D. forecasting.Answer: A

9. Technology no longer protected by copyright, available to everyone, is considered to be:A. proprietary.B. open.C. experimental.D. in the public domain.Answer: A

10. ____________ is the study of molecules and structures whose size ranges from 1 to 100 nanometers.A. NanoscienceB. MicroelectrodesC. Computer forensicsD. Artificial intelligenceAnswer: A

Questions Asked in Previous Exams11. ____________ is the science that attempts to produce machines that display the same type of intelligence that humans do.A. NanoscienceB. NanotechnologyC. SimulationD. Artificial intelligence (AI)Answer: D

12. ____________ is data that has been organized or presented in a meaningful fashion.A. A processB. SoftwareC. StorageD. InformationAnswer: D



15. After a picture has been taken with a digital camera and processed appropriately, the actual print of the picture is considered:A. data.B. output.C. input.D. the process.Answer: B



18. In the binary language each letter of the alphabet, each number and each special character is made up of a unique combination of:

A. eight bytes.B. eight kilobytes.C. eight characters.D. eight bits.Answer: D

19. The term bit is short for:A. megabyte.B. binary language.C. binary digit.D. binary number.Answer: C


Questions Asked in Previous Exams21. A ____________ is approximately one billion bytes.A. kilobyteB. bitC. gigabyteD. megabyteAnswer: C

22. A ____________ is approximately a million bytes.A. gigabyteB. kilobyteC. megabyteD. terabyteAnswer: C

23. ____________ is any part of the computer that you can physically touch.A. HardwareB. A deviceC. A peripheralD. An applicationAnswer: A

24. The components that process data are located in the:A. input devices.

B. output devices.C. system unit.D. storage component.Answer: C

25. All of the following are examples of input devices EXCEPT a:A. scanner.B. mouse.C. keyboard.D. printer.Answer: D

26. Which of the following is an example of an input device?A. scannerB. speakerC. CDD. printerAnswer: A

27. All of the following are examples of storage devices EXCEPT:A. hard disk drives.B. printers.C. floppy disk drives.D. CD drives.Answer: B

28. The ____________, also called the â€œbrainsâ€ of the computer, is responsible for �processing data.A. motherboardB. memoryC. RAMD. central processing unit (CPU)Answer: D

29. The CPU and memory are located on the:A. expansion board.B. motherboard.C. storage device.D. output device.Answer: B

30. Word processing, spreadsheet, and photo-editing are examples of:A. application software.B. system software.C. operating system software.

D. platform software.Answer: A

Questions Asked in Previous Exams31. ____________ is a set of computer programs used on a computer to help perform tasks.A. An instructionB. SoftwareC. MemoryD. A processorAnswer: B32. System software is the set of programs that enables your computerâ€™s hardware devices and ____________ software to work together.A. managementB. processingC. utilityD. applicationAnswer: D33. The PC (personal computer) and the Apple Macintosh are examples of two different:A. platforms.B. applications.C. programs.D. storage devices.Answer: A34. Apple Macintoshes (Macs) and PCs use different ____________ to process data and different operating systems.A. languagesB. methodsC. CPUsD. storage devicesAnswer: C35. Servers are computers that provide resources to other computers connected to a:A. network.B. mainframe.C. supercomputer.D. client.Answer: A36. Smaller and less expensive PC-based servers are replacing ____________ in many businesses.A. supercomputersB. clientsC. laptopsD. mainframesAnswer: D37. ____________ are specially designed computers that perform complex calculations extremely rapidly.A. Servers

B. SupercomputersC. LaptopsD. MainframesAnswer: B38. DSL is an example of a(n) ____________ connection.A. networkB. wirelessC. slowD. broadbandAnswer: D39. The difference between people with access to computers and the Internet and those without this access is known as the:A. digital divide.B. Internet divide.C. Web divide.D. broadband divide.Answer: A40. ____________ is the science revolving around the use of nanostructures to build devices on an extremely small scale.A. NanotechnologyB. Micro-technologyC. Computer forensicsD. Artificial intelligenceAnswer: A





45. ____________ controls the way in which the computer system functions and provides a means by which users can interact with the computer.A. The platformB. The operating systemC. Application softwareD. The motherboardAnswer: B


47. ____________ are specially designed computer chips that reside inside other devices, such as your car or your electronic thermostat.A. ServersB. Embedded computersC. Robotic computersD. MainframesAnswer: B

48. The steps and tasks needed to process data, such as responses to questions or clicking an icon, are called:A. instructions.B. the operating system.C. application software.D. the system unit.Answer: A



1. If a word is typed that is not in Word’s dictionary, a____________wavy underline appearsbelow the word.(A) red(B) green(C) blue(D) black(E) None of theseAns : (A)2. The____________button on the quick access Toolbar allows you to cancel your recentcommands or actions.(A) Search(B) Cut(C) Document(D) Undo(E) None of theseAns : (D)3. In Excel, any set of characters containing a letter , hyphen, or space is considered—(A) a formula(B) text(C) a name(D) a title(E) None of theseAns : (B)4. ____________Software allows users to perform calculations on rows and columns of data.(A) Word processing(B) Presentation graphics(C) Database Management Systems(D) Electronic Spreadsheet(E) None of theseAns : (C)5. A ____________represent approximately one billion memory locations.(A) kilobyte(B) megabyte(C) gigabyte(D) terabyte(E) None of theseAns : (C)

6. ____________cells involves creating a single cell by combining two or more selected cells.(A) Formatting(B) Merging(C) Embedding(D) Splitting(E) None of theseAns : (B)7. The operating system is the most common type of____________software.(A) communication(B) application(C) system(D) word-processing(E) None of theseAns : (C)8. When you quickly press and releaes the left mouse button twice , you are—(A) Primary-clicking(B) pointing(C) Double-clicking(D) Secondary-clicking(E) None of theseAns : (C)9. The horizontal and vertical lines on a worksheet are called—(A) cells(B) sheets(C) block lines(D) gridlines(E) None of theseAns : (D)10. To delete an incorrect character in a document, ____________ to erase to the right of theinsertion point.(A) press the left mouse key(B) double-click the right mouse key(C) press the BACKSPACE key(D) press the delete key(E) None of theseAns : (D)

11. The operating system does all of the following EXCEPT:(A) provide a way for the user to interact with the computer.(B) manage the central processing unit (CPU).(C) manage memory and storage.(D) enable users to perform a specific task such as document editing.Ans : (D)12. During the boot process, the____________looks for the system files.

(A) CDB. BIOSC. CPUD. DVDAns : (B)13. ____________ are lists of commands that appear on the screen.(A) GUIs(B) Icons(C) Menus(D) WindowsAns : (C)14. ____________ is the ability of an operating system to control the activities of multipleprograms at the same time.(A) Multitasking(B) Streamlining(C) Multiuser(D) SimulcastingAns : (A)15. The unique signal, generated by a device, that tells the operating system that it is in need ofimmediate attention is called an:(A) action.(B) event.(C) interrupt.(D) activity.Ans : (C)16. The operating system controls access to the processor by assigning a(n) ____________ toeach task requiring the processor’s attention.(A) CPU(B) slice of time(C) stack(D) eventAns : (B)17. The blocks of code, included in the operating system, that software applications interact withare known as:(A) application programming interfaces (APIs).(B) complimentary metal-oxide conductors (CMOS).(C) device drivers.(D) bootstrap loaders.Ans : (A)

18. MS-DOS is a ____________ operating system.(A) point-and-click(B) user-friendly

(C) command-driven(D) MacAns : (C)19. An interrupt handler is a(n):(A) location in memory that keeps track of recently generated interrupts.(B) peripheral device.(C) utility program.(D) special numeric code that indicates the priority of a request.Ans : (D)

20. A spooler is a(n):(A) location in memory that maintains the contents of a document until it prints out.(B) print job.(C) program that coordinates the print jobs that are waiting to print.(D) message sent from the printer to the operating system when a print job is completed.Ans : (C)21. Virtual memory is typically located:(A) on a floppy disk.(B) in the CPU.(C) in a flash card.(D) on the hard drive.Ans : (D)22. The purpose of a swap (or page) file is to:(A) maintain pages of documents that are being spooled to the printer.(B) hold a program’s data or instructions in virtual memory when it can’t fit in RAM.(C) prevent thrashing in a multitasking environment.(D) allow multiple print jobs to print their pages out simultaneously.Ans : (B)23. The definition of thrashing is:(A) swapping data between virtual memory and RAM too frequently.(B) insufficient hard disk space.(C) too many processors being managed by the operating system.(D) inaccurate information stored in the registry.Ans : (A)24. All of the following are TRUE of Safe Mode EXCEPT:(A) Safe Mode is a special diagnostic mode.(B) Safe Mode loads all nonessential icons.(C) Safe Mode allows users to troubleshoot errors.(D) Safe Mode loads only the most essential devices.Ans : (B)25. Verification of a login name and password is known as:(A) configuration.(B) accessibility.(C) authentication.(D) logging in.Ans : (C)

26. The combination of the operating system and the processor is referred to as the computer’s:(A) CPU.(B) platform.(C) BIOS.(D) CMOS.Ans : (B)27. The following message generally means:(A) a nonsystem floppy has been left in the floppy disk drive.(B) the CD drive is not functioning.(C) the BIOS is corrupted.(D) there is a problem loading a device.Ans : (A)

28. Which of the following is the correct sequence of actions that takes place during the boot-upprocess?(A) Load operating system ? Activate BIOS ? Perform POST ? Check configuration settings(B) Activate BIOS ? Perform POST ? Load operating system ? Check configuration settings(C) Perform POST ? Load operating system ? Activate BIOS ? Check configuration settings(D) Activate BIOS ? Check configuration settings ? Perform POST ? Load operating systemAns : (B)29. All of the following are steps involved in the boot process EXCEPT:(A) load the operating system into RAM.(B) the power-on self-test.(C) activate the basic input/output system (BIOS).(D) load application programs.Ans : (D)30. The ____________, stored on a ROM chip, is responsible for loading the operating systemfrom its permanent location on the hard drive into RAM.(A) BIOS(B) API(C) device driver(D) supervisor programAns : (A)31. The basic input/output system (BIOS) is stored in:(A) RAM.(B) ROM.(C) the CPU.(D) the hard drive.

Ans : (B)32. Ensuring that the essential peripheral devices are attached and operational is the____________ process.(A) configuration(B) CMOS(C) POST(D) ROMAns : (C)

33. The memory resident portion of the operating system is called the—(A) registry.(B) API.(C) CMOS.(D) kernel.Ans : (D)34. Which of the following does NOT occur during the power-on self-test (POST)?(A) The ScanDisk utility begins to run.(B) The video card and video memory are tested.(C) The BIOS identification process occurs.(D) Memory chips are checked to ensure they are working properly.Ans : (A)

1. _ _ _ _ _ _ _ _ _ translates and executesprogram at run time line by line.1) Compiler 2) Interpreter 3)Linker 4) Loader 5) None2. _ _ _ _ _ _ _ _ is an OOP principle.1) Structured programming 2) Proceduralprogramming 3) Inheritance.4) Linking 5) None3. COBOL is widely used in _ _ _ _ _ _ _ applications.1) Commercial 2) Scientific 3) Space 4) Mathematical.5) None4. RAM stands for.1) Random origin money 2) Random only memory 3) Read only memory.4) Random access memory 5) None5. 1 Byte =?1) 8 bits 2) 4 bits 3) 2 bits 4) 9 bits 5) None6. SMPS stands for.1) Switched mode power supply 2) Start mode power supply.3) Store mode power supply 4) Single modepower supply.5) None7. The device used to carry digital data on analog lines iscalled as.1) Modem 2) Multiplexer 3)Modulator 4) Demodulator 5) None8. VDU is also called.1) Screen 2) Monitor 3) Both 1 &2 4) printer 5) None9. BIOS stands for.1) Basic Input Output system 2) BinaryInput output system.3) Basic Input Off system 4) all the above.5) None10. Father of ‘C’ programming language.1) Dennis Ritchie 2) Prof Jhon Kemeny 3)Thomas Kurtz 4) Bill Gates.5) None11. The 16 bit Microprocessor means that it has.1) 16 address lines 2) 16 Buses 3) 16 Datalines 4) 16 routes 5) None12. Data going into the computer is called.1) Output 2) algorithm 3) Input 4) Calculations 5) flow chart13. Which of the following refers to a small, single-sitenetwork?1) LAN 2) DSL 3)RAM 4) USB 5) CPU14. Microsoft Office is.1) Shareware 2)Public domainsoftware 3) Open-sourse software.

4) A vertical market application 5) An application suite15. How many options does a BINARY choice offer.1) None 2) One 3) Two.4) it depends on the amount of memory on the computer.5) It depends on the speed of the computer’s processor16. A collection of program that controls how your computersystem runs and processes information is called.1) Operating System 2) Computer 3)Office 4) Compiler 5) Interpreter17. Computer connected to a LAN (Local Area Network) can.1) run faster 2) go on line.3) share information and /or share peripheral equipment.4) E-mail 5) None18. Information travels between components on the mother boardthrough.1) Flash memory 2) CMOS 3) Bays 4) Buses 5) Peripherals19. How are data organized in a spreadsheet?1) Lines & spaces 2) Layers & Planes 3) Height & Width.4) Rows & Columns 5) None20. The blinking symbol on the computer screen is called the.1) mouse 2) logo 3)hand 4) palm 5) cursor.

Documents

comp sc qstn