Understanding Logic Gates

What is a logic gate?

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

• A logic gate is a physical switch that controls electricity flow.

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

• A logic gate is a type of computer software.

Name the basic types of logic gates.

• ADD

• AND, OR, NOT, NAND, NOR, XOR, XNOR

• SUBTRACT

• MULTIPLY

What does an AND gate do?

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

• An AND gate outputs true only if all inputs are true.

• An AND gate can have only one input to function.

• An AND gate outputs false only if all inputs are false.

What is the output of an OR gate when both inputs are 0?

• -1

• 0

• 0.5

• 1

Describe the function of a NOT gate.

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

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

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

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

What is the output of a NAND gate when both inputs are 1?

• 1

• 0

• 0.5

• -1

Explain the difference between an AND gate and an OR gate.

• An AND gate requires all inputs to be true for a true output, whereas an OR gate requires only one input to be true for a true output.

• An AND gate outputs true if at least one input is true, while an OR gate outputs true only if all inputs are true.

• An AND gate can have multiple true outputs, whereas an OR gate can only have one true output.

• An AND gate requires no inputs to be true for a true output, while an OR gate requires all inputs to be true.

What is a NOR gate?

• A NOR gate outputs true when at least one input is true.

• A NOR gate is a digital logic gate that outputs true only when both inputs are false.

• A NOR gate is a type of analog circuit.

• A NOR gate requires three inputs to function.

How many inputs can a logic gate have?

• Logic gates can have 1 or more inputs.

• Logic gates can have up to 10 inputs only.

• Logic gates do not have any inputs.

• Logic gates can only have 2 inputs.

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

• 0

• 1

• 2

• 1.5