CMPF112-module1

7/29/2019 CMPF112-module1

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CMPF112: Computing Skills forEngineersIntroduction for Computer System


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Introduction to Computer System

The process of input to output is directed by the software

but performed by the hardware. Four main aspects of data

handling in order for a computer to function:

Figure 1.1: Four primary components of a computer system


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Input: Accepting data that has been

represented in a way that the computer can

use. Processing: Performing arithmetic or

comparison (logical) operations on the

represented data. Output: Displaying results

Storage: Storing results for later reuse.


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A computer system is a collection of related

components that have all been designed to

work together smoothly. It includes:Hardware: The physical components of the

computer

Software: The programs that run on thecomputer


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Computer Hardware and Their

Functions

Desktop PC: A computer that is flat and

usually sits on a desk.


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Functions

Tower PC: A computer that is upright


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Functions

Keyboard: The keyboard lets the user input

commands or data to the computer.


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Functions

Monitor: Display data or information


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Functions

Printer: Display data or information in a

printed matter.


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Functions

Mouse: A pointing device to select an object

on the display that allows the user to point

and click or drag and drop. Mouse can beused for pointing, clicking and scrolling.


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Functions

Diskette or floppy disk or thumb drive:

Used to store data or information.


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Functions

Hard Drive or Hard Disk: The main storage areainside computer (usually called C: Drive) Capacitymeasures in gigabytes. Disk data is read by disk

drive. Higher speed of access compared to floppydisks.


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Functions

Compact Disk Read-Only Memory (CD-ROM): Aremoveable disk, which can store large amounts ofinformation. Size between 650 to 800MB. Requires CD-ROMdrive to read the information. Compact Disk Read/Write(CD-RW) drive allows user to save information onto a CD


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Computer Software

System software

Refers to programs that make the computer

usable and accessible to the developers and

applications software. The most important system software is the

operating system that manages all the overall

operation of the computer system. E.g.Window XP, Linux, UNIX, Sun Solaris.

Documents

CMPF112-module1