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OCR A Level Computer Science > Main Parts of a CPU > Flashcards

Flashcards in Main Parts of a CPU Deck (10)
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1

What is the CPU often described as?

The Brain of the Computer.

2

Where does the CPU Fetch instructions from?

The Main Memory/RAM.

3

What does the CU stand for?

Control Unit.

4

What does the ALU stand for?

Arithmetic Logic Unit.

5

What does the data bus do?

Carries the data around the CPU.

6

What does the address bus do?

Carries the information on the location of the data.

7

What does the control bus do?

Handles commands to other devices such as the hard disk, monitor, and graphics card.

8

The three main jobs of the Control Unit

1. Controls the way data moves around the CPU by controlling the buses.
2. Monitors the flow of data between the CPU and other components like the graphics card.
3.Executes provided instructions.

9

Where are the results from the ALU typically stored?

In the Accumulator Register.

10

What is a register?

Type of memory inside of the CPU.