Computer Systems

Question 1

3 main components of the
Computer Structure

Answer 1

Control Unit
ALU
Registers

Question 2

Control Unit function

Answer 2

Dictate what the other parts of the processor do

Question 3

ALU Function

Answer 3

In charge of all calculations and logical decisions

Question 4

Register Functions

Answer 4

They are small temporary holders of data,
MDR: memory data register
MAR: memory address register

Question 5

Buses and their functions

Answer 5

Address Bus
One way, locating where the data will be read from/saved to

Data Bus
Two way, Carries data to the processor

Question 6

Fetch execute cycle - Read

Answer 6

Address bus set up with address to be read from
Read line(control) is activated
Data bus set up with data to be read
Data bus put in registers in processor
Decode and execute

Question 7

Images types

Answer 7

Bitmaps
Vector Graphic

Question 8

Bitmap pros and cons

Answer 8

P
Detailed
Pixels allow detailed editing

C
Large file size
Not scalable

Question 9

Vector graphics
Pros and cons

Answer 9

P
Small file size
Easily scaled

C
Requires drawing package
Unrealistic

Question 10

Types of vector graphs

Answer 10

Rectangle
Line
Ellipse
Polygon

Question 11

Cache memory

Answer 11

Small memory area that records your most recent/ frequent actions