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Digital Electronics - Digital Arithmetic Operations and Circuits - Discussion

Discussion Forum : Digital Arithmetic Operations and Circuits - General Questions (Q.No. 1)
Digital Arithmetic Operations and Circuits
1.
For a 4-bit parallel adder, if the carry-in is connected to a logical HIGH, the result is:
the same as if the carry-in is tied LOW since the least significant carry-in is ignored.
that carry-out will always be HIGH.
a one will be added to the final result.
the carry-out is ignored.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
2 comments Page 1 of 1.
KIRAN V said:   5 years ago
For Example, consider two 4-bit Numbers: A = 1100 and B = 1000; Cin =1 (as given).

Add A & B.
1100
1000
-------
10100

Now Cin added to the final result.
10100
-----1
--------
10101.

Hence, option C is correct.
Abdu ahmed said:   6 years ago
How C? Please explain.
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