# Electronics and Communication Engineering - Digital Electronics

1.
Consider the following statements: A multiplier
1. selects one of the several inputs and steers it to the output
2. routes the data from a single input to many outputs
3. converts parallel data into serial data
4. is a combinational circuit
On the above statements which are correct?
1, 2, 4
2, 3, 4
1, 3, 4
1, 2, 3
Explanation:
No answer description is available. Let's discuss.

2.
In the full adder, denoting Sum by S and carry by C
S = 1 when two or more inputs are unity
C = 1 when two or more inputs are unity
C = 1 when all the inputs are unity
S = 1 when all the inputs are unity
Explanation:
No answer description is available. Let's discuss.

3.
Each term in POS form is called max terms.
True
False
Explanation:
No answer description is available. Let's discuss.

4.
When signed numbers are used in binary arithmetic, which of the following has unique representation for zero?
Sign-magnitude
1's complement
2's complement
9's complement