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Question

A micro processor chip used in a PC system.

A
Performs the arithmetic-logic and control functions
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B
Is the only chip cound in most PC models
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C
Almost always operates on by-bits of data at a time
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D
Performs the primary storage function
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E
None of the above
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Solution

The correct option is A Performs the arithmetic-logic and control functions

A micro processor chip used in a PC system for Performs the arithmetic-logic and control functions.

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).

A microprocessor, sometimes called a logic chip, is a computer processor on a microchip. The microprocessor contains all, or most of, the central processing unit (CPU) functions and is the "engine" that goes into motion when you turn your computer on.

A microprocessor executes a collection of machine instructions that tell the processor what to do. Based on the instructions, a microprocessor does three basic things: Using its ALU (Arithmetic/Logic Unit), a microprocessor can perform mathematical operations like addition, subtraction, multiplication and division.


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