question_answer

Name the 2-input logic gate, whose truth table is given below :    

A	B	Output \[\Upsilon \]
0	0	1
0	1	1
1	0	1
1	1	0

  If this logic gate is connected to a NOT gate, what will be the output when (i) \[\mathbf{A =1,B =l and}\] (ii) \[\mathbf{A =0,B =1}\]?

Answer:

                    As\[\Upsilon =\overline{AB},\] so the given truth table is for a NAND gate.  

Input A	Input B	Output of NAND gate , \[\Upsilon \]	Output of NOT gate , =\[\bar{\Upsilon }\]
1	1	0	1
0	1	1	0