Question

Draw the logic symbol of AND gate.

Answer 1

Recall the basics of the logic gates. Recall the basic information about AND gate from all of the logic gates. In the logic symbol of the AND gate, show the input as well as output terminals to determine from where the input is given and where the output for the given input is obtained.

Complete answer:
The AND gate is one of the types of gates from all the logic gates. It gives the high output i.e. 1 only when all the inputs given to the input terminals are high i.e. 1. The logic symbol of the AND gate is as follows:

in the AND gate, the inputs are given at A and B and the output is shown at C.

Additional information:
The Boolean expression for AND gate is represent as follows:
${\text{A}} \cdot {\text{B}} = {\text{C}}$
The dot in the above Boolean expression states there is multiplication of the inputs in the AND gate to determine the output. The AND gate may have two or more inputs and have only one output which is either high (1) or low (0).

The truth table is the simplest way to remember the outputs of the AND gate for all possible inputs.

A	B	${\text{A}} \cdot {\text{B}} = {\text{C}}$
0	0	0
0	1	0
1	0	0
1	1	1

From the above truth table of AND gate, we can state that the output of the AND table is only high when all the inputs are high.

Note: The students should always remember the logic symbol of the AND gate and should not get confused between the logic symbol of the AND gate and the logic symbols of all the other gates such as OR gate, NOT gate, NAND gate, NOR gate, EX-OR gate, EX-NOR gate, etc.