COMPUTER SYSTEM Section ABC

8/12/2019 COMPUTER SYSTEM Section ABC

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CHAPTER 2 : COMPUTER SYSTEMSMCQ

1. Input is the __________ that you enter into the computer.

A. data

B. programC. softwareD. information Answer : A

2. Processors contain __________.

A. a chip and an adapter

B. a motherboard and a port

C. a contro unit and an arithmetic ogic unitD. adapter cards Answer : C

!. CD"#$% and D&D"#$% are e'ampes of __________.

A. #A%

B. #$%C. optica dis(s

D. magnetic dis(s Answer : C

). __________ are connected to the hard dis(s and the D&D*CD"#$% dri+e.

A. ,-B ports

B. ID cabes

C. 'pansion sotsD. Adapter cards Answer : B

/. 0ormatting a dis( _______________

A. erases a data on the dis( B. di+ides the hard dis( into se+era partitions

C. ma(es a bac(up copy of the data on the dis(

D. mo+es the data around on the dis( to sa+e spaceAnswer : A

. e usuay format a hard dis( using fie systems.

A. 0A3

B. 43

C. ,0-D. 530-

Answer : D



6. Before you can format and use the dis(7 you need to _______________

A. scan the dis(

B. create the partition

C. bac(up the dis( D. defrag the dis(

Answer : B

Questions 8 and 10 is based on the fiu!e be"o#$

8. In the machine cyce steps iustrated in the accompanying figure7 _____ is the process of

obtaining a program instruction or data item from memory.

A. fetching

B. storing

C. e'ecuting

D. decoding

Answer : A

9. ________ is the process of carrying out commands.

A. fetching

B. storing

C. e'ecutingD. decoding

Answer : C



1. 3he process of transating a program instruction into signas the computer can e'ecute is

caed _______.

A. fetching

B. storing

C. e'ecuting

D. decoding Answer : D



MATCH%&'

1. Based on the diagram beow7 P7 ; and # are the components on the motherboard.

Identify P7 ; and # by matching it in the Coumn A to Coumn B.

CO(UM& A CO(UM& )

P

Q

R

CPU

E*+ansion s"ots

RAM s"ots

Po!ts and ,onne,to!s

Me-o!.

R

Q

P



Answer:

CO(UM& A CO(UM& )

P

Q

R

CPU

E*+ansion s"ots

RAM s"ots

Po!ts and ,onne,to!s

Me-o!.

R

Q

P



2. %atch each the machine cyce from Coumn A with its suitabe functions on Coumn

B.

CO(UM& A CO(UM& )

/ETCH

EECUTE

ECOE

STORE

Performs the re<uested instruction7 such as adding two numbers or

deciding which one of them is arger.

-tores the resuts in an interna register

=a temporary storage ocation or in memory>

Determines what the program is teing the computer to do.

#etrie+e the ne't program instruction from the computer?s memory.



Answer:

CO(UM& A CO(UM& )

!. %atch the picture with the correct steps in PC assembing.

/ETCH

EECUTE

ECOE

STORE

Performs the re<uested instruction7 such as adding two numbers ordeciding which one of them is arger.

-tores the resuts in an interna register

=a temporary storage ocation or in memory>

Determines what the program is teing the computer to do.

#etrie+e the ne't program instruction from the computer?s memory.

pace the motherboard on the des(

pace the processor to the @I0 soc(et

insert the memory card to #A% sotattach and side the hard dis( dri+e to

its bayinsert compact disc dri+einsert the foppy dri+e to !./ baychec( the fina connection



Answer:

pace the motherboard on the des(

pace the processor to the @I0 soc(et

insert the memory card to #A% sot

attach and side the hard dis( dri+e to

its bay

insert compact disc dri+e

insert the foppy dri+e to !./ bay

chec( the fina connection



/%(( %& THE )(A&S

1. 3he ______________ is a number system that has ust to unit digit and 1. A

_____________ is the smaest unit of data the computer can process. hen 8 bits are

grouped together as a unit they form a ___________. (binary system; bit; byte)

2. 3he four genera components of computer hardware are :

a. ____________________ (input)

b. ____________________ (process)

c. ____________________ (output)

d. ____________________ (storage)

!. _________________________ consists of programs designed to ma(e users more producti+e

and*or assist them with persona tas(s7 and incude eb browser7 word processing software7

and spreadsheet software.

Application software

). _________________________ is software that aows users to organie data in rows and

coumns and perform cacuations of the data. 3he rows and coumns coecti+ey are caed a

_______________ . A ___________ is the intersection of a coumn and row in a wor(sheet.

%any wor(sheets ces contain a number that can be used in a cacuation caed a

________________. Spreadsheet software; worksheet; cell; value

/. ________________________ is appication software that aows user to create +isua aids for

presentations to communicate ideas7 messages and other information to a group. hie7

__________________ Presentation software

0igure A

. 3he 0igure A shows one of the steps in PC assembing which is _____________________.

inserting RAM into RAM slotinserting RAM



TRUE3/A(SE

1. A utiity program is a program that assesses and reports information about +arious

computer resources and de+ices.

3rue !alse

2. Database programs7 spreadsheets and graphics software are e'ampes of utiity

software.

3rue !alse

!. An $perating -ystem is a set of programs that coordinates a the acti+ities among

computer hardware de+ices.

"rue 0ase

). ,sers can distribute the proprietary software freey.

3rue !alse

/. -ecurity is a maor issue in proprietary software.

"rue 0ase

. $pen source software is software pro+ided for use7 modification and redistribution.

"rue 0ase

6. Proprietary software is popuar because this software is a cosed software any

programmer can ma(e impro+ements which can resut in a better <uaity software.

3rue !alse



SECT%O& )

1. Processor is an eectronic component on a computer?s motherboard that interprets and

carries out the basic instructions that operate the computer.

=a> 5ame the two components of a processor.

#ontrol $nit (#$) and Arithmetic and %ogic $nit (A%$)

=b> Based on your gi+en answer in =a>7 state the functions of each components.

ALU

"he arithmeticlogic unit (A%$) contains the electronic circuitry that e&ecutes

all arithmetic and logical operations'

"he arithmeticlogic unit can perform four kinds of arithmetic operations or

mathematical calculations addition subtraction multiplication and division'

"he arithmeticlogic unit also performs logical operations' A logical

operation is usually a comparison' "he unit can compare numbers letters or

special characters'

CU

"he control unit contains circuitry that uses electrical signals to direct theentire computer system to carry out or e&ecute stored program instructions'

"he control unit does not e&ecute program instructions; rather it directs

other parts of the system to do so' "he control unit must communicate withboth the arithmeticlogic unit and memory'

2. %ost computers are digita and recognie ony two discrete states: off => and on =1>.

3o represent these states7 computer use the binary system.

Based on the abo+e statement7 answer the foowing <uestions.

=a> Define bit and byte.

A bit is the smallest unit of data a computer can process' *yte is formed when + bits are grouped together as a unit' (Additional ,nfo ,t

provides enough different combinations of -s and .s to represent /01 individual

characters')

=b> -tate two of the coding scheme used in data representation.

"he series of bits represent by using coding schemes such as AS#,, 2*#3,#and $nicode'





SECT%O& C

1. Based on the diagram beow7 answer the foowing <uestions.

=a> 'pain two differences of and 4.

Answer:

Primary Storage

#omputer memory also known as primary storage is closely related to the

central processing unit but separate and distinct from it'

Memory holds the data after it is input to the system and before it is

processed; Memory holds the data after it has been processed but before it has been

released to the output device'

,n addition memory holds the programs (computer instructions) needed by

the central processing unit' Memory can hold data only temporarily because

it re4uires a continuous flow of electric current; if the current is interruptedthe data is lost'

Secondary Storage

Secondary storage provides additional storage separate from memory'

Recall that memory holds data and programs only temporarily; thus there is a

need for secondary storage' "he two most common secondary storage media

are magnetic disks and magnetic tape'

PR%MARY SECO&ARY

#apacity Small %arge

Access Speed !ast Medium

#ost per M* 2&pensive #heap

Portability !i&ed Portable

5eed #ompulsory Alternative

Primary

4

-econdary

E

#A%

@

#$%

-torage



=b> Fi+e two characteristics of E.

RAM is usually volatile' ,ts contents are lost once the power is shut off'

RAM can be erased or written over at will by the computer software'

=c> 'pain two differences of E and @.

RAM : Stands for Random Access Memory' Also called main memory or

primary storage; "he more RAM a computer has the faster it responds; 3ata in memory can be accessed randomly no matterwhere it is in an easy and speedy manner' RAM is usually volatile this

means that its contents are lost once the power is shut off' RAM can be

erased or written over at will by the computer software'

ROM : Read6only memory (R7M) contains programs and data that are

permanently recorded into this type of memory at the factory; they can be

read and used but they cannot be changed by the user' !or e&ample a personal computer probably has a program for calculating s4uare roots in

R7M' R7M is nonvolatile 66 its contents do not disappear when the power is

turned off'



2. 3he foowing <uestions are based on the figures beow.

A B

=a> 5ame the two types of appication software A and B.

A : Word Processing software

B : Spreadsheet software

=b> #eferring to your answer on =a>7 gi+e two differences between the two

appication software.

8ord processing software lets you create edit format store and

print te&t and graphics in one document'

A word processing program is an office application that enables users

to create edit format and print te&tual documents'

A spreadsheet is a program that processes information in the form of grid of columns and rows'

Spreadsheet are indispensable tools for anyone who works withnumbers'

=) mar(s>





R S T

!. Based on figure abo+e7 answer the foowing <uestions.

=a> 5ame P and ;.

=b> Fi+e two differences between operating system software P and ;.

=c> Ai wants to insta an operating system in to his new computer. Ge

decided to insta -7 but he is not +ery sure with his choice. -o7 he see(sfor your ad+ice. Eou7 as an I3 technician7 e'pain the ad+antages and

disad+antages by using of - as an operating system.

Answer:

(a) P Proprietary Software

9 7pen Source Software

(b) Two differences between operating system software P and 9'

P : Proprietary Software

,t is also called closed source software'

7ffers a stable system with support if the software fails or malfunctions'

: Open So!rce Software

,ts is not a closed source software

Software provided for use modification and redistribution'

Software that any programmer can download from the ,nternet

for

free and modify with suggested improvement'

"he only 4ualification is that changes can:t be copyrighted'

OPERAT%&' SYSTEM

SO/T4ARE

P Q



(c) Ad"antages of MAC OS

2asy to install

*est raphical $ser ,nterface ($,)

Secure and stable

#isad"antages of MAC OS

Support only Apple computers

*ase hardware more e&pensive than other platforms

!ewer utilities available

!ewer games than 8indows

Many applications still being updated to run with MA# 7S'

Documents

COMPUTER SYSTEM Section ABC