Unit 2 Learning aim B Revision Quiz

State the main role of the CPU

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State the main role of the Hard Disk Drive

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

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

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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

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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?

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Describe the role of a data bus

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

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

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