COMPUTER SCIENCE AND ENGINEERING
COMPUTER ARCHITECTURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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To start up the computer
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To manage the fetch decode execute cycle
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To create presentations
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To carry out calcul
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Detailed explanation-1: -Ans : The CPU in any computer has one specific role; it conducts the program execution by undergoing the fetch-decode-execute cycle (widely known as the instruction cycle). While program execution is carried out, the CPU executes the instruction cycle in a loop.
Detailed explanation-2: -The Control Unit sends a signal to the RAM in order to fetch the program and data, which is then stored in one of the CPU’s register. To do so, the CPU makes use of a vital hardware path called the ‘address bus’ along which the program and data travels.
Detailed explanation-3: -The control unit manages the fetch-execute cycle.
Detailed explanation-4: -Decode stage The decoding process allows the CPU to determine what instruction is to be performed so that the CPU can tell how many operands it needs to fetch in order to perform the instruction. The opcode fetched from the memory is decoded for the next steps and moved to the appropriate registers.
Detailed explanation-5: -The processor is made up by the control unit, the arithemetic logic unit(ALU) and several registers. The control unit controls and coordinates all operations. It works through a cycle of fetch, decode, and execution .