Internal hardware

Question 1

Bus

Answer 1

A set of parallel wires connecting two or more components

Question 2

Control bus

Answer 2

Sends and receives (bi directional) commands to control the processor and other components

Question 3

Data bus

Answer 3

Moves data and commands from place to place(bi directional). Has 8, 16, 32 or 64 separate lines (width)

Question 4

Address bus

Answer 4

Carries binary addresses for memory locations (one way)

Question 5

I/O controllers

Answer 5

Device that interfaces between an input or output device and a processor

Question 6

3 parts of I/O controller

Answer 6

1. Interface allowing connection to I/O or system bus
2. Set of data, command and status registers
3. Interface allowing controller to connect to the cable connecting device to the computer

Question 7

Interface

Answer 7

standardised form of connecting signal, connecting pins/ sockets or voltage levels