Name: NOT Gate
Uploaded: 2019-07-19
Duration: 4 min 12 s
Description: A NOT gate gives us an inverted output of what we provide as input. Here in this video, let us discuss the analogy and expression for this gate.

Question

Give the truth tables and symbols of AND, NAND and NOR logic gates.

Accepted Answer

Truth table and symbol of AND gate is also a two inputs and one output logic gates . It combines the inputs A and B with output Y = A.B

Symbol of AND gate:

Truth table of AND gate

A B $Y = A . B$

$0$ $0$ $0$

$1$ $0$ $0$

$0$ $1$ $0$

$1$ $1$ $1$

Truth table and symbol of NAND gate it is a logic circuit in which AND gate is followed by a NOT gate :

A B $Y = \bar{A . B}$

$0$ $0$ $1$

$1$ $0$ $1$

$0$ $1$ $1$

$1$ $1$ $0$

Truth table and symbol of NOR gate it is logic circuit in which OR gate is followed by a NOT gate

A B $Y = \bar{A + B}$

$0$ $0$ $1$

$1$ $0$ $0$

$0$ $1$ $0$

$1$ $1$ $0$

Give the truth tables and symbols of AND, NAND and NOR logic gates.

Important Questions on Logic Gates

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