Digital Electronics - Digital Concepts - Discussion

Discussion Forum : Digital Concepts - General Questions (Q.No. 8)
8.
A full subtracter circuit requires ________.
two inputs and two outputs
two inputs and three outputs
three inputs and one output
three inputs and two outputs
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
20 comments Page 1 of 2.

Anurag Tripathi said:   1 decade ago
In full sub-tractor there are two inputs for the subtraction of two numbers and one input for borrow. So, when we combine them together there are three inputs and two outputs are there, one output for the difference of two numbers and one output stands as the borrow or say carry.

M.Muthumari said:   8 years ago
For full subtractor, we need three input and it gives two output.

Input:a;b;cin(carry input).
Output:S(sum);Cout(carry output).

Probal said:   1 decade ago
It takes two input as to number and one input for borrow. It provides one output as difference of two numbers and borrow for next. So it has 3 input and one output.

Ranjan said:   1 decade ago
Dn=An<xor>Bn<xor>Cn-1
Cn=A'nBn+A'nCn-1+BnCn-1
it is a representation of Full Subtractor, what need 3-inputs and 2-outputs.

Madhu said:   1 decade ago
Subtractor means the difference, for full subtractor we need 3 i/p and 2 o/p, one o/p for difference and other for borrow.

Valmik said:   1 decade ago
For full subtractor two inputs for two numbers and third input is clock input and o/p is two difference and borrow.

Jaisri said:   1 decade ago
Full subtractor means 3 inputs & 2 outputs. At that time output becomes difference & borrow.

R.Sridhar said:   5 years ago
3 INPUTS X, Y, Z and 2 OUTPUTS D, B.

D=Difference,
B=Borrow.
Here Z, 3rd Input it's BORROW-IN.

Prerna said:   1 decade ago
3 input and 2 output is obtained for full subtractor
for half subtractor its 2 input and 2 output

Mahesh said:   1 decade ago
Its require 3 input and, its require 2 output; one indicate subtraction and one indicate borrow.


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