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Questions and Answers
What is the primary function of the Control Unit (CU) in a CPU?
What is the primary function of the Control Unit (CU) in a CPU?
- Manage memory storage and retrieval
- Fetch, decode, and execute instructions (correct)
- Increase the processing speed of the system
- Perform arithmetic and logical operations
Which of the following operations is NOT performed by the Arithmetic & Logic Unit (ALU)?
Which of the following operations is NOT performed by the Arithmetic & Logic Unit (ALU)?
- Division
- Comparison
- Fetching instructions (correct)
- Addition
What happens after an instruction is fetched by the Control Unit?
What happens after an instruction is fetched by the Control Unit?
- It is converted into machine language directly
- It is decoded to determine its operation (correct)
- It is immediately executed without further processing
- It is stored in memory for future use
Which component of the CPU is responsible for executing logical operations?
Which component of the CPU is responsible for executing logical operations?
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In a CPU, which task is primarily handled by the Control Unit apart from decoding instructions?
In a CPU, which task is primarily handled by the Control Unit apart from decoding instructions?
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Study Notes
The Central Processing Unit (CPU)
- The CPU is made up of two main components: the Control Unit (CU) and the Arithmetic & Logic Unit (ALU).
- The CU oversees the operation of the computer's components.
- The CU is responsible for retrieving, interpreting, and carrying out instructions from programs.
- The ALU specializes in arithmetic calculations (addition, division, etc.) and logical comparisons.
The Control Unit (CU)
- The CU reads instructions from the computer's memory.
- Each instruction is analyzed to determine its function.
- The CU then carries out the decoded instruction.
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