COMPUTER SCIENCE AND ENGINEERING
COMPUTER ORGANIZATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Fetch
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Execute
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Decide
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Decode
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Detailed explanation-1: -The Steps required by the CPU to fetch and execute an Instruction is called an instruction cycle. It consists of fetch and executes cycle. The time required by the microprocessor to complete the operation of accessing memory or I/O devices is called a machine cycle. Clock time is a known time state.
Detailed explanation-2: -What is the first step in the Fetch-Execute Cycle? The address in the CPU is passed to the Memory Address Register. The address in the Memory Address Register is passed to the Memory Data(buffer) Register.
Detailed explanation-3: -The basic operation of a computer is called the ‘fetch-execute’ cycle. The CPU is designed to understand a set of instructions-the instruction set. It fetches the instructions from the main memory and executes them. This is done repeatedly from when the computer is booted up to when it is shut down.
Detailed explanation-4: -It is composed of three main stages: the fetch stage, the decode stage, and the execute stage.