FUNDAMENTALS OF COMPUTER

COMPUTER HARDWARE COMPONENTS FUNCTIONS

WHAT IS A MOTHERBOARD

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Identify component that involved in third step of Machine Cycle-Execute.
A
Control Unit (CU)
B
Arithmetic Logic Unit (ALU)
C
Memory
D
None of the above
Explanation: 

Detailed explanation-1: -Four steps of the machine cycle Fetch-Retrieve an instruction from memory. Decode-Translate the retrieved instruction into computer commands. Execute-Execute the computer commands. Store-Send and write the results back in memory.

Detailed explanation-2: -The machine cycle has four processes i.e. fetch process, decode process, execute process and store process. All these processes are necessary for the instruction execution by the processor.

Detailed explanation-3: -While the ALU is executing one operation, the control unit loads the next instruction into an instruction cache register, decodes the instruction, and loads all possible data operands into the data cache registers.

Detailed explanation-4: -Execute instruction Cycle The initial three cycles (Fetch, Indirect, and Interrupt) are predictable and quick.

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