1. Which of the following best describes the von Neumann bottleneck? A. the dela

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Question

1. Which of the following best describes the von Neumann bottleneck?

A. the delay in the signal from an input device to the CPU indicating that there is new input

B. the delay in fetching an instruction or a piece of data from RAM

C. the delay between asking the ALU to compute something and the result being ready

D. the delay in translating a program from a high-level language to a low-level language

2. Which CPU component is in charge of orchestrating each part of a CPU's cycle?

A. the instruction address register (aka program counter)

B. the control unit

C. the instruction register

D. the ALU (arithmetic logic unit)

3. Which of the following is true about the von Neumann architecture?

A. Program data is stored on a medium other than electronic memory, whereas instructions are stored in electronic memory.

B. Instructions are stored in separate electronic memory from program data.

C. Instructions are stored in electronic memory alongside program data.

D. Instructions are stored on a medium other than electronic memory, whereas program data is stored in electronic memory.

1. Answer - B - the delay in fetching an instruction or a piece of data from RAM.

Explanation:

The Von nNewmann bottleneck occurs when the processing speed is much greater than the speed of transfer of data in the computer architecture.

Due to this the CPU has to wait for instructions and data to be fetched from the memory and has to sit idle until the fetch is complete.

The CPU sitting idle creates a bottleneck due to which the processing resources and time remain underutilized.

2. Answer - B - the Control Unit

Explanation:

The role of the control unit is to orchestrate fetch, decode and execute cycles of a program.

This is the part of the CPU that directs the operations of the processor.

3. Answer - C - instructions are stored in electronic memory alongsides the program data.

Explanation:

Von Neumann architecture is Based on stored program computer concept.

Under this concept both program data and instructions are stored in the same memory.

This is also considered better than the Harvard architecture because unused programs space cannot be used for data.

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