CISC & RISC GCSE

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Question 1 of 5

1. Question
Which answer best describes what a ‘Complex Instruction’ is, when referring to CISC processors?
- A complex instruction is one which processes a complicated calculation.
- A complex instruction is one which may involve several low level instructions, taking several clock cycles to execute fully.
- A complex instruction is an instruction which is slow to execute.
- A complex instruction is one which will execute in a single clock cycle, allowing instructions to be pipelined.
- A complex instruction is one which involves a single low level instruction, taking a single clock cycle to execute.
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Question 2 of 5

2. Question
Which answer best describes what a ‘Simple Instruction’ is, when referring to RISC processors?
- A simple instruction is one which processes a simple calculation.
- A simple instruction is one which may involve several low level instructions, taking several clock cycles to execute fully.
- A simple instruction is an instruction which is slow to execute.
- A simple instruction is one which may involve several low level instructions, allowing instructions to be pipelined.
- A simple instruction is one which involves a single low level instruction, taking a single clock cycle to execute.
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Question 3 of 5

3. Question
Which type of processor has more instructions in its instruction set?
- RISC
- CISC
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Question 4 of 5

4. Question
Which word describes the act of ‘overlapping processor stages’ (e.g.: as one instruction is executed, the next is decoded and the next is fetched, all at the same time).
- Concurrency
- Parallel Processing
- Pipelining
- Sequential Processing
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Question 5 of 5

5. Question
What is an instruction set, when referring to CPUs?
- The list of processes given to the CPU, by the program each time the program loads.
- A list of instructions that is understood by a CPU and can be executed by the CPU.
- The standard/universal set of instructions that all CPUs are manufactured with, in order for them to perform processing.
- A set of instructions that the CPU provides the various programs that request the services of the CPU.
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CISC & RISC GCSE

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