Arithmetic LogicUnit


 
 
Concept Explanation
 

An arithmetic-logic unit (ALU) is the part of a computer processor (CPU) 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).

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Sample Questions
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Question : 1

Which of the following operation can be done by the arithmetic logic unit ?

Right Option : D
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Question : 2

 Match the following with their correct meaning .

1. Logical operations

a. Include operations like AND, OR, NOT, XOR, NOR, NAND, etc.
2. Bit-Shifting Operations b. Refers to bit addition and subtraction.
3. Arithmetic operations c. Pertains to shifting the positions of the bits by a certain number of places either towards the right or left .

 

Right Option : C
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Explanation
Question : 3

Which of the following is the incorrect statement ?

1. Bit-Shifting Operations pertains to shifting the positions of the bits by a certain number of places either towards the right or left .

2. Arithmetic operations cannot do multiply or addition .

3. Logical operations include operations like AND, OR, NOT, XOR, NOR, NAND, etc.

Right Option : C
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