Logic Gates Overview

What is the output of an XOR gate when both inputs are true?

Which statement accurately describes the output of a NAND gate?

What is the output of a NOR gate when both inputs are false?

How does the output of an XNOR gate differ from that of an XOR gate?

What is the primary function of a NOT gate?

If an AND gate has both inputs as true, what will be the output of a NAND gate for the same inputs?

Which of the following describes the output of an XOR gate?

In a truth table, what binary values represent the logic states?

What is the primary function of logic gates in a digital circuit?

Which logic gate will output true only when both inputs are true?

Which of the following Boolean expressions represents the output of an AND gate?

What distinguishes an XOR gate from an OR gate?

In which applications are logic gates commonly used?

Which logic gate's output is false when at least one input is true?

What kind of logic gate behaves like the logical 'or' operator?

Logic Gates

Logic gates are fundamental building blocks in digital circuits
They perform logical operations on binary inputs (0 or 1) to produce a binary output (0 or 1)
The relationship between inputs and output is based on a specific logic
Logic gates are used in microprocessors, microcontrollers, and embedded systems

AND Gate

An AND gate produces a 1 output only when all inputs are 1
Otherwise, the output is 0.
Represents logical "and" operation
Output = A • B (A and B)

OR Gate

An OR gate produces a 1 output if at least one input is 1
The output is 0 only if all inputs are 0
Represents logical "inclusive or" operation
Output = A + B (A or B)

XOR Gate

XOR gate produces a 1 output if the inputs are different
Output is 0 if the inputs are the same
Represents logical "exclusive or" operation
Output = A ⊕ B (A exclusive OR B)

NOT Gate

A NOT gate inverts the input
If the input is 1, the output is 0
If the input is 0, the output is 1
Represents logical negation or inversion

NAND Gate

A NAND gate is an AND gate followed by a NOT gate
Output is 0 only if all inputs are 1
Otherwise, the output is 1
Output = !(A • B) (NOT (A and B))

NOR Gate

A NOR gate is an OR gate followed by a NOT gate
Output is 1 only if all inputs are 0
Otherwise, the output is 0
Output = !(A + B) (NOT (A or B))

XNOR Gate

An XNOR gate is an XOR gate followed by a NOT gate
Output is 1 if the inputs are the same
Output is 0 if the inputs are different
Output = !(A ⊕ B) (NOT (A exclusive OR B))

Truth Tables

Truth tables show all possible input combinations and their corresponding outputs for each gate.
Essential for understanding how a gate functions.

This quiz covers the fundamental logic gates used in digital circuits, including AND, OR, XOR, and NOT gates. Test your understanding of how these gates perform logical operations on binary inputs to produce outputs. Ideal for students studying digital electronics or computer engineering.