Unit 2 Learning aim B Revision Quiz

State the main role of the CPU

State the main role of the Hard Disk Drive

Explain, using examples, what expansion cards are and what role they play in a PC

"expansion cards can be for sound or.........."

Which one of these is processed by the CPU?

• Denary

• Hexadecimal

• Instructions

• RAM

State what the ALU(Arithmetic Logic Unit)/Registers and control unit do in a computer

How much data can be processed in one clock cycle?

• one bit

• one byte

• one word

• one character

What is the purpose of cache memory and where might it be used?

Describe the role of a data bus

What happens if you increase the size of the data bus?

A CPU has the following specification, quad core 2 GHz. What does this mean?