CPU

Question 1

Role of the CPU

Answer 1

The CPU processes data by fetching instructions from the memory, decoding the instructions and executing the instructions. It also controls all the component parts of a computer. E.g hard disk.

Question 2

Where is it located

Answer 2

Motherboard

Question 3

The main parts of a CPU

Answer 3

• Control Unit
• Arithmetic Logic Unit(ALU)
• Registers

Question 4

Control Unit

Answer 4

It co-ordinates the sequence of data movements.
It controls data flow in the CPU.
It tells the memory and ALU how to respond to the instructions.

Question 5

Arithmetic Logic Unit

Answer 5

A unit in a computer which carries out arithmetic and logical functions.
The arithmetic part does mathematical operations.
The logic part deals with logic and comparisons.

Question 6

Registers

Answer 6

A fast and small, special type of memory in the CPU. They are used to temporarily store data, while a software program is running.

Question 7

Cache

Answer 7

It is an extremely fast type of ram in the CPU.

Question 8

CPU clock

Answer 8

A tiny crystal quartz inside the CPU that ticks while the CPU processes instructions. It is measured in Gigahertz (GHz).