OCR A-Level CS 1.1.1d

What is the main purpose of pipelining in a processor?

• To increase the size of the processor

• To improve efficiency

• To increase the clock speed

• To reduce power consumption

In the analogy of writing invites, what task does the second person perform?

• Writing the invites

• Placing invites in envelopes and attaching stamps

• Addressing the envelopes

• Sending the invites

What happens to the ALU when the next instruction is being fetched without pipelining?

• It fetches the next instruction

• It remains idle

• It decodes the instruction

• It continues executing

How does pipelining improve the efficiency of a processor?

• By reducing the number of instructions

• By allowing multiple instructions to be executed simultaneously

• By increasing the clock speed

• By increasing the size of the processor

What is the main limitation of pipelining?

• It requires more memory

• It increases power consumption

• It reduces the clock speed

• Programs with lots of branching instructions may not benefit much

What is 'flushing the pipe' in the context of pipelining?

• Adding more instructions to the pipeline

• Increasing the clock speed

• Removing instructions that are no longer needed

• Reducing power consumption

What are the two types of pipelines mentioned in the text?

• Data Pipeline and Control Pipeline

• Instruction Pipeline and Data Pipeline

• Instruction Pipeline and Arithmetic Pipeline

• Arithmetic Pipeline and Data Pipeline