Chap. 1, 2, 3 Key Words

Question 1

Computer System

Answer 1

A computer with input, output and storage devices making a system to carry out a task

Question 2

Microprocessor

Answer 2

A small chip of silicon with all the components of a computer processor built onto it.

Question 3

CPU

Answer 3

Another term for a computer processor. The term is used to describe the main computer processor. There may be other processors in a complete computer system.

Question 4

Control Unit

Answer 4

A component part of the CPU. The control unit manages other components and the processing cycle of the CPU.

Question 5

Arithmetic & Logic Unit

Answer 5

The component part of the CPU that performs all arithmetic and logical operations.

Question 6

Clock

Answer 6

A small quartz crystal in the CPU that emits a regular pulse. The pulse of the clock is used to synchronise the CPU’s processing cycle.

Question 7

Buses

Answer 7

High speed data links that carry instructions and data to and from the CPU.