FUNDAMENTALS OF COMPUTER

COMPUTER HARDWARE COMPONENTS FUNCTIONS

COMPUTER SYSTEM COMPONENTS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which part of the CPU performs operations such as AND, OR and NOT?
A
Arithmetic Logic Unit (ALU)
B
Control Unit (CU)
C
Memory Data Register (MDR)
D
None of the above
Explanation: 

Detailed explanation-1: -…of a control unit, an arithmetic logic unit (ALU), a memory unit, and input/output (I/O) controllers. The ALU performs simple addition, subtraction, multiplication, division, and logic operations, such as OR and AND.

Detailed explanation-2: -The arithmetic logic unit (ALU) performs mathematical calculations; it is the part that computes. The ALU is fed instructions by the control unit, which acts as a traffic cop, sending instructions to the ALU.

Detailed explanation-3: -The arithmetic and logic unit (ALU) is where the CPU performs the arithmetic and logic operations. Examples of arithmetic operations are addition, subtraction, multiplication, and division. Examples of logic operations are comparisons of values such as NOT, AND, and OR.

Detailed explanation-4: -An arithmetic-logic unit is the part of a central processing unit that carries out arithmetic and logic operations on the operands in computer instruction words. In some processors, the ALU is divided into two units: an arithmetic unit (AU) and a logic unit (LU).

Detailed explanation-5: -ALUs perform arithmetic operations such as addition, subtraction, and multiplication, and logical operations such as NOR, NOT, AND, and OR. The arithmetic operation of division is typically done by another component of the CPU called a Floating-Point Unit, or FPU.

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