The Central Processing Unit

What is the primary function of the control unit within the CPU?

• It performs arithmetic and logical operations.

• It decodes instructions

• It stores frequently accessed data for quick retrieval.

• It regulates the clock speed of the CPU.

What is the first step of the fetch-decode-execute cycle?

• The CPU executes the instruction.

• The CPU decodes the instruction.

• The CPU fetches the instruction from memory.

• The CPU writes the result to memory.

Which component of the CPU is responsible for performing mathematical calculations?

• Control unit

• Arithmetic logic unit (ALU)

• Cache memory

• Clock

What is cache memory used for in a CPU?

• To store the operating system.

• To increase the clock speed.

• To temporarily store data that is frequently accessed or needed by the CPU.

• To permanently store user data.

What does the clock speed of a CPU determine?

• The amount of data it can store.

• The number of instructions it can execute per second.

• The size of the CPU.

• The number of cores in the CPU.

What is the purpose of multiple cores in a CPU?

• To increase the clock speed.

• To store more cache memory.

• To perform multiple tasks simultaneously.

• To reduce the physical size of the CPU.

How does cache memory improve CPU performance?

• By increasing the number of cores.

• By providing faster access to frequently used data.

• By expanding the main memory capacity.

• By increasing the CPU's clock speed.

What happens during the fetch phase of the fetch-decode-execute cycle?

• The CPU performs the operation specified by the instruction.

• The CPU stores the result of the computation into memory.

• The CPU retrieves the instruction from the main memory.

• The CPU prepares the next set of instructions for execution.

Which part of the CPU coordinates the activities of all other parts of the computer?

• Arithmetic logic unit (ALU)

• Control unit

• Cache memory

• Clock

What is the advantage of having a CPU with more cores?

• It can execute instructions at a higher clock speed.

• It can store more data in cache memory.

• It can run more applications at the same time without performance degradation.

• It can execute a single instruction faster.