Unit 10 Server-side scripting of web pages part 2

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Computer Systems

Unit 2

Chris Young

5/11/2010

Table of contents

P1 - 3, 4, 5, 6

P2 - 7, 8

P3 - 11, 12

P4 -13

P5 -

M1

M2

M3

D1

D2

Resources

http://www.itsky.com.au

Explain the function of the system unit components and how they communicate

Central processing unit - The Central Processing Unit (CPU) carries out the actual processing of data. The data it processes is gathered via the system bus, from the main memory. The CPU then sends back the results to main memory via the system bus. The CPU also controls and times the operations of the other key components. CPU's use in their operation: Fetch, decode, execute, and writeback.

BIOS - The BIOS is a built-in software that decides what a computer can do without having access to a hard drive or CD/DVD. On PCs, the BIOS contains all the code required to control the keyboard, display screen, disk drives, serial communications, and a number of other miscellaneous functions.

Motherboard - The motherboard is a printed circuit board (PCB) that houses