COMPUTER PERIPHERALS
MOBILE DEVICES AND SMARTPHONES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Fetch
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Decode
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Execute
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Store
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Detailed explanation-1: -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.
Detailed explanation-2: -The main components of a CPU are the ALU, registers and control unit. The basic functions of the ALU and register are labeled in the above “basic elements of a processor section.” The control unit is what operates the fetching and execution of instructions.
Detailed explanation-3: -The purpose of the CPU is to process data. The CPU works by following a process known as ‘fetch, decode and execute’. The CPU fetches an instruction from memory, decodes this instruction and then executes it. The CPU carries out this cycle continuously, millions of times per second.
Detailed explanation-4: -The fetch-execute cycle (also known as fetch-decode-execute cycle) is followed by a processor to process an instruction . The cycle consists of several stages. The memory address held in the program counter is copied into the MAR . The address in the program counter is then incremented-increased-by one.