Q5

Assuming that only X and Y logic inputs are available and their complements are not available.Then, what is the minimum number of 2 input NAND gate required to implement X (Ex-OR) Y ?

Q4

How many don't cares are there in BCD adder?

Q3

Design a circuit that compares 2 four bit numbers A and B to check if they are equal.The circuit has one output x so that x=1 if A=B and x=0 if A not equal to B

Q2

Design a combinational circuit with 4 input lines that represent a decimal digit in BCD and 4 output lines that generates the 9's complement of the input digits?

Q1

What is the fundamental mode of operation of asynchronous sequential circuit?If there are more than one input to such a circuit what constrain is imposed on them?