COMPUTER SCIENCE AND ENGINEERING
COMPUTER ARCHITECTURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It controls the execution of programs.
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It times the fetching of instructions.
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It decodes instructions.
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Its performance is unaffected by processor speed.
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Detailed explanation-1: -The correct answer is Reading Optical Drive. Reading Optical Drive is not the main function of the CPU.
Detailed explanation-2: -The control unit controls all CPU operations, including ALU operations, the movement of data within the CPU, and the exchange of data and control signals across external interfaces (system bus). Registers are high-speed internal memory-storage units within the CPU.
Detailed explanation-3: -Detailed Solution. The correct answer is Decode Program Instruction.
Detailed explanation-4: -Control: The function of the control unit is to execute the instructions of a program, one by one, in the desired sequence. It interprets each instruction and then prompts its execution by one of the units like input, output, ALU, storage.