1.2 Computer Compnents

Question 1

Name 3 Components of the computer

Answer 1

Processor
Motherboard
Power supply unit
Memory
Secondary storage

Question 2

What’s the main role of a processor

Answer 2

Manages the functions of computer system by processing data and instructions

Question 3

What is the Motherboard

Answer 3

The main circuit board of a computer - components such as CPU and ROM are connected

Question 4

What does the PSU do

Answer 4

Converts electricity from Alternating Current from the mains power supply to Direct current which the computer system can use

Question 5

What are 2 types of Memory

Answer 5

Volatile
Non volatile

Question 6

What is Volatile

Answer 6

Temporary - data is lost whenever the power is turned off

Question 6

What is Non volatile

Answer 6

Long term - saves data even when power is off

Question 7

CPU

Answer 7

The central processing unit is the brain of the computer that fetches, decodes and executes instructions.

Question 8

CU

Answer 8

The control unit is a component of the CPU that directs the operation of the processor

Question 9

ALU

Answer 9

The arithmetic logic unit is the part of the CPU that carries out arithmetic and logic operations

Question 10

Cache

Answer 10

A component of the CPU that is a small fast memory that stores decoded, frequently used instructions. It decreases transfer time and speeds up the cycle.

Question 11

Fetch Execute cycle

Answer 11

A
The basic operation of a computer that fetches information from the memory and executes it.

Question 12

Motherboard

Answer 12

The main printed circuit board in a computer which means that its the primary piece of circuitry that all the other pieces plug into

Question 13

Power supply

Answer 13

Converts the alternating current (AC) to a low voltage direct current (DC) for the internal components of a computer

Question 14

Optical storage

Answer 14

Any storage of data which is written and read by a lasers

Question 15

Magnetic storage

Answer 15

The storage of data on a magnetised medium

Question 16

Solid state media

Answer 16

A type of storage media that is stored electronically with no moving parts

Question 17

Registers

Answer 17

The smallest and fastest memory in a computer that temporarily holds frequently used instructions and data to be used by the CPU

Question 18

RAM

Answer 18

The random access memory is the main memory that is volatile and stores data for programs that are currently running.

Question 19

ROM

Answer 19

Read only memory that stores non volatile, permanent data that can only be read such as the boot up instructions on a computer