Understanding Logic Gates

What is a logic gate?

• A logic gate is an electronic device that performs a basic operation on one or more binary inputs to produce a single binary output.

• A logic gate is a mathematical formula used for calculations.

• A logic gate is a type of computer software.

• A logic gate is a physical switch that controls power.

Name the basic types of logic gates.

• TRUE, FALSE, MAYBE

• AND, OR, NOT, NAND, NOR, XOR, XNOR

• ADD, SUBTRACT, MULTIPLY

• INPUT, OUTPUT, PROCESS

What does an AND gate do?

• An AND gate outputs true if at least one input is true.

• An AND gate outputs false only when all its inputs are false.

• An AND gate outputs true only when all its inputs are true.

• An AND gate can have any number of inputs but only needs one to be true.

What is the output of an OR gate when both inputs are false?

• true

• false

• null

• undefined

Describe the function of a NOT gate.

• The function of a NOT gate is to amplify the input signal.

• The function of a NOT gate is to pass the input signal unchanged.

• The function of a NOT gate is to invert the input signal.

• The function of a NOT gate is to combine multiple input signals.

What is the difference between NAND and NOR gates?

• NAND gate outputs true when all inputs are true; NOR gate outputs false when all inputs are false.

• NAND gate outputs false when all inputs are true; NOR gate outputs true when all inputs are false.

• NAND gate and NOR gate are identical in function and output.

• NAND gate outputs true for all input combinations except when all inputs are false.

How many inputs can a typical logic gate have?

• 5 to 6 inputs

• 1 to 2 inputs

• 10 or more inputs

• 2 to 4 inputs

What is the significance of truth tables in logic gates?

• Truth tables are used to measure the speed of logic gates.

• Truth tables are essential for analyzing and designing logic gates by showing all possible input-output combinations.

• Truth tables help in determining the physical size of logic gates.

• Truth tables are only relevant for analog circuits.

Can logic gates be combined to form complex circuits?

• Complex circuits can only be made with resistors.

• Logic gates are only used in simple circuits.

• Yes, logic gates can be combined to form complex circuits.

• Logic gates cannot be combined at all.

What role do logic gates play in computer architecture?

• Logic gates perform basic logical operations that are essential for processing binary data in computer architecture.

• Logic gates are primarily used for user interface design.

• Logic gates are used for storing data in memory.

• Logic gates are responsible for generating power in circuits.