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 first step of Machine Cycle-Fetch.
A
Control Unit (CU)
B
Arithmetic Logic Unit (ALU)
C
Memory
D
None of the above
Explanation: 

Detailed explanation-1: -The Fetch Cycle Step 1: The address in the program counter is moved to the memory address register(MAR), as this is the only register which is connected to address lines of the system bus.

Detailed explanation-2: -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-3: -It is composed of three main stages: the fetch stage, the decode stage, and the execute stage.

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