CU and CPU Flashcards
1
Q
Define and explain the purpose of the central processing unit (CPU)
A
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).
2
Q
What are the three main components of the CPU
A
CU (Control Unit)
(ALU) Arithmetic Logic Unit
(IAS) Immediate Access Store
3
Q
Define the Control Unit.
A
The CU manages the execution of instructions, which are usually in some sort of order using the fetch-execute cycle.
4
Q
List the three main jobs of a Control Unit.
A
Decide which instructions to carry out next
Decode the instructions
Execute instructions
