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JABATAN MATEMATIK, SAINS DAN KOMPUTER

TOPIC 1 Introduction to Computer

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Page 1: TOPIC 1 Introduction to Computer

JABATAN MATEMATIK, SAINS DAN KOMPUTER

Page 2: TOPIC 1 Introduction to Computer

COURSE OUTLINE

TOPIC 1

COMPUTER

SYSTEM

TOPIC 2

INTERNET

TOPIC 3

WORD

PROCESSOR

TOPIC 4

SPREADSHEET

TOPIC 5

PROJECT

MANAGEMENT

TOPIC 6

PRESENTATION AND

THE BASIC OF

MULTIMEDIA

Page 3: TOPIC 1 Introduction to Computer

BC101 COMPUTER APPLICATION

Course Structure: Continous Assesment

Item No Percentage

1. Quiz 1 10 %

2. Lab Work 5 50 %

3. Project 1 40 %

TOTAL 100 %

Attandance Less < 80 % FAIL

Page 4: TOPIC 1 Introduction to Computer

CLO ASSESSMENT METHODS FOR

COURSEWORK (CA)

CONTEXT CLO1 CLO2 CLO3 QUIZ (1) 10%

LABORATORY EXERCISE

(5) 50%

PROJECT (1) 40%

Computer System √ √

Internet √ √

Word Processor √ √ √

Spreadsheets √ √ √

Project Management √ √

Presentation and

Basic Of Multimedia

√ √

i. Continuous Assessment (CA) - 100% ii. Final Examination (FE) - 0%

Assessment of this course is as follows:

Page 5: TOPIC 1 Introduction to Computer

INTRODUCTION TO COMPUTER

WINDOWS

Page 6: TOPIC 1 Introduction to Computer

Definations of computer:

A programmable machine that accepts input, processes it

according to specified rules or instructions, and produces output.

an electronic device that stores, retrieves, and processes data, and

can be programmed with instructions.

Page 7: TOPIC 1 Introduction to Computer

The First Generation: 1946-1958 (The Vacuum Tube Years) ENIAC, the Mark 1, and the IAS computer

The Second Generation: 1959-1964 (The Era of the Transistor) Mainframes

The Third Generation: 1965-1970 (Integrated Circuits - Miniaturizing the Computer)

Mainframes , Minicomputers

The Fourth Generation: 1971-Today (The Microprocessor) Mainframes,Minicomputers, Microcomputers

The Fifth Generation: 2000-Today (Artificial Intelligence) ????

Evolution of Computers

Page 8: TOPIC 1 Introduction to Computer

Categories of Computers Personal computers Personal computers are desktop computers designed for an individual's use. They run programs designed to help individuals accomplish their work more productively.

Servers Servers are not designed to be used directly. They make programs and data available for people hooked up to a computer network, a collection of computers connected together so that they can exchange data.

Page 9: TOPIC 1 Introduction to Computer

Minicomputers Computer that is smaller, less expensive, and less powerful than a mainframe or supercomputer, but more expensive and more powerful than a personal computer. Minicomputers are used for scientific and engineering computations, business-transaction processing, file handling, and database management, and are often now referred to as small or midsize servers.

Mainframes Mainframes are huge, multi-user systems designed to handle gigantic processing jobs in large corporations or government agencies. A powerful multi-user computer capable of supporting many hundreds or thousands of users simultaneously.

Categories of Computers

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Supercomputers The fastest type of computer. Supercomputers are very expensive and are employed for specialized applications that require immense amounts of mathematical calculations. For example, weather forecasting requires a supercomputer. Other uses of supercomputers include animated graphics, fluid dynamic calculations, nuclear energy research, and petroleum exploration

Categories of Computers

Page 12: TOPIC 1 Introduction to Computer

Computer System and Programs A computer system consists of hardware and software

Hardware

• is the physical equipment such as the case, floppy disk drives,keyboard, monitor, printers

Software

•describes the programs that are used to operate the computer system. It is also called programs, instruct the computer on how to operate.

Page 13: TOPIC 1 Introduction to Computer

INPUT DEVICE

CPU

(CENTRAL PROCESSING UNIT)

OUTPUT DEVICE

STORAGE

Example :

Keyboard, Mouse

Example:

Hardisk,

Disk

Example:

Printer, Speaker

Components of Computers

Page 14: TOPIC 1 Introduction to Computer

Computer

Page 15: TOPIC 1 Introduction to Computer

Input Device A device that feeds data into a computer, such as a Keyboard,mouse and joystick.

CPU The central processing unit, or CPU, is the part of thencomputer that executes software programs,including the Operating system .Also call the brains of the computer.

Components of Computers

Page 17: TOPIC 1 Introduction to Computer

CPUs have three basic parts The Arithmetic Logic Unit (ALU)

•does all of the mathematics in a computer - does all of the logic comparisons of values

•some common logic comparison symbols

= equal to < less than

> greater than <= less than or equal to

>= greater than or equal to <> not equal

The Control Unit

•directs the flow of information into the CPU and/or memory or storage

controls which instructions the CPU will do next

Registers

•Used to store data and instructions inside the processor

•Size of the registers can affect the speed and performance of the processor

Page 18: TOPIC 1 Introduction to Computer

A computer system unit contains many parts.

Motherboard - The motherboard is the main

circuit board of a microcomputer. It is also

known as the mainboard or system board.

CPU - The CPU is the central electronic chip

that determines the processing power of the

computer.

Memory - Memory is the part of the computer

that temporarily stores applications,

documents, and stem operating information.

Bus - A bus is an electronic line that allows 1s

and 0s to move from one place to another.

Expansion Slots - Expansions slots appear

on the motherboard. They are sockets into

which adapters are connected.

Ports and Connectors - A port is a connector

located on the motherboard or on a separate

adapter.

Bays - A bay is a space inside the computer

case where a hard drive, floppy drive or CD-

ROM drive sits

Power Supply - A power supply changes

normal household electricity into electricity

that a computer can use.

Sound Components - A sound card lets a

computer play and record high quality sound.

Componenst of CPU

Page 19: TOPIC 1 Introduction to Computer

Primary storage

Main internal storage of a computer . Primary storage is used to

store data that is likely to be in active use.

2 types of primary storage:

RAM (random Access Memory)

Temporary memory

is a volatile

the information is lost after the power is switched off.

ROM (Read Only Memory)

Permanent storage

data stored in ROM cannot be modified

is not volatile, but is not suited to storage of large quantities of data because it

is expensive to produce.

Parts of Computer Storage

Page 21: TOPIC 1 Introduction to Computer

A network consists of two or more computers that

are linked in order to share resources (such as

printers and CD-ROMs), exchange files, or allow

electronic communications.

The computers on a network may be linked through

cables, telephone lines, radio waves, satellites, or

infrared light beams.

What is Network

Page 23: TOPIC 1 Introduction to Computer

i. Local Area Networks (LANs):

The computers are geographically close together

(that is, in the same building).

i. Wide Area Networks (WANs):

The computers are farther apart and are connected

by telephone lines or radio waves.

i. Area Networks (MANs):

A data network designed for a town or city.

Types of Network

Page 24: TOPIC 1 Introduction to Computer

Software is the instructions that a

computer uses to do what you ask it

to.

The two types of software are :

i. Operating systems Software

ii. Applications software.

Software

Page 25: TOPIC 1 Introduction to Computer

• Used by the computer to accomplish a task.

• What system software does:

•controls the internal function of the computer

•controls other devices connected to the CPU

• Examples:

• DOS . Windows

• Linux . Unix

Operating System Software

Page 26: TOPIC 1 Introduction to Computer

A network operating system is a supervisory software program that resides on the server. It controls how the network operates by defining who can use the network and how information and peripherals are shared among users. Examples: •Novell Netware . Microsoft Windows NT

•AppleShare . UNIX/NFS

Network Operating System Software

Page 27: TOPIC 1 Introduction to Computer

- Includes programs that do real work for users .

Examples :

Word Processing – Ms Word

database programs – Ms Acces, Foxpro

Spreadsheets - Ms Excel

web browsers – Internet Explorer

graphic design - Autocad

Application Software