Digital Electronics - Microprocessor Fundamentals - Discussion

Discussion :: Microprocessor Fundamentals - General Questions (Q.No.3)


The circuits in the 8085A that provide the arithmetic and logic functions are called the:

[A]. CPU
[B]. ALU
[C]. I/O
[D]. none of the above

Answer: Option B


No answer description available for this question.

Sai said: (Jul 17, 2011)  
ALU means arithmetic and logical unit, by using this unit arithmetic (i.e add, sub, div, mul) , logical (i.e and, or, nor) operation are perform in microprocessor.

Anamika Pathak said: (Aug 28, 2014)  
ALU is the right answer.

Because All the arithmetic and logical operation like add, sub, increment by 1, decrements by 1 and the logical operation like logical AND, logical OR, logical EX-OR, logical EX-NOR, complement, rotate right and rotate left can be performed by the ALU operation.

Arun More said: (Dec 14, 2017)  
Thank you so much for the given explanation.

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