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Question

The ALU of a computer responds to the commands coming from _______________.

A
primary memory
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B
control section
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C
external memory
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D
cache memory
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E
None of these
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Solution

The correct option is B control section

The ALU of a computer responds to the commands coming from control section.

The processor contains three sections called the Arithmetic Logic Unit (ALU), the Control Unit and Registers. It controls the timing of operations in the computer and controls the instructions sent to the processor and the peripheral devices.

An arithmetic logic unit (ALU) is a digital circuit used to perform arithmetic and logic operations. It represents the fundamental building block of the central processing unit (CPU) of a computer. Modern CPUs contain very powerful and complex ALUs. In addition to ALUs, modern CPUs contain a control unit (CU).

Control unit. ... The control unit (CU) is a component of a computer's central processing unit (CPU) that directs the operation of the processor. It tells the computer's memory, arithmetic/logic unit and input and output devices how to respond to the instructions that have been sent to the processor.


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