Computer Science - Digital Computer Electronics - Discussion


A half-adder is also known as:

[A]. AND circuit
[B]. NAND circuit
[C]. NOR circuit
[D]. EX-OR circuit
[E]. None of the above

Answer: Option D


No answer description available for this question.

Saptarshi Ghosh said: (Dec 3, 2013)  
The xor operation is responsible for Modulo 2 addition i.e. a+b => (a+b)(mod 2) for 1 bit binary computations e.g. CRC calculation. Hence half adder (adds 2 bits) called xor circuit. Carry(a AND b) is required if multi-bit calculation is needed as propagator.

Post your comments here:

Name *:

Email   : (optional)

» Your comments will be displayed only after manual approval.