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CPU Components and Functions

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Questions and Answers

What is the primary function of the Control Unit in a CPU?

To manage the flow of data between registers and other hardware components (correct)
To store instructions and data temporarily
To perform arithmetic and logical operations
To execute program instructions directly

What type of signals are carried by the control bus in a CPU?

Data signals
Control signals (correct)
Clock signals
Address signals

What is the primary responsibility of the ALU in a CPU?

To perform arithmetic and logical operations (correct)
To execute program instructions
To store instructions and data temporarily
To manage the flow of data between registers

How does the Control Unit coordinate the actions of different CPU components during program execution?

By sequencing the actions of registers and devices (D) Signup and view all the answers

What is the benefit of the ALU in a CPU?

It enables the CPU to process data efficiently and execute program instructions effectively (B) Signup and view all the answers

How do the Control Unit and ALU work together to execute program instructions in a CPU?

The Control Unit sequences the actions of registers and devices, and the ALU performs arithmetic and logical operations (B) Signup and view all the answers

What is the primary responsibility of the Control Unit in a CPU?

Interpreting and controlling the execution of instructions (C) Signup and view all the answers

Which of the following is NOT a function of the Arithmetic Logic Unit (ALU)?

Executing program instructions (B) Signup and view all the answers

What is the purpose of the Control Unit's fetch/execute cycle?

To interpret and control the execution of instructions (C) Signup and view all the answers

How does the Control Unit interact with the Registers in a CPU?

It moves data to and from the Registers and other hardware components (D) Signup and view all the answers

What is the role of the Control Unit in managing data flow within the CPU?

Moving data to and from CPU Registers and other hardware components (A) Signup and view all the answers

What is the relationship between the Control Unit and the ALU in a CPU?

The ALU performs arithmetic and logical operations, while the Control Unit interprets and controls instructions (D) Signup and view all the answers

What is the primary function of the Control Unit?

Retrieving and decoding program instructions (D) Signup and view all the answers

What is the role of registers in the CPU?

Temporarily storing data and program instructions (C) Signup and view all the answers

What operation does the ALU perform?

Arithmetic and logic operations (B) Signup and view all the answers

What is the primary responsibility of the CPU's instruction sequencing mechanism?

Executing program instructions in the correct order (C) Signup and view all the answers

What is the primary function of the CPU's buses?

Coordinating data transfer between the CPU and other devices (C) Signup and view all the answers

What is the role of the CPU's clock?

Regulating the timing of CPU operations (D) Signup and view all the answers