CU and CPU

Question 1

Define and explain the purpose of the central processing unit (CPU)

Answer 1

The CPU is a microprocessor. Its job is to process all data and complete instructions by the user. Done by fetching instructions from memory repeatedly (Fetch Execute Cycle).

Question 2

What are the three main components of the CPU

Answer 2

CU (Control Unit)
(ALU) Arithmetic Logic Unit
(IAS) Immediate Access Store

Question 3

Define the Control Unit.

Answer 3

The CU manages the execution of instructions, which are usually in some sort of order using the fetch-execute cycle.

Question 4

List the three main jobs of a Control Unit.

Answer 4

Decide which instructions to carry out next
Decode the instructions
Execute instructions