Understanding Logic Gates

What is a logic gate?

• A logic gate is a type of computer software.

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

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

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

Describe the function of an AND gate.

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

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

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

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

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

• 0.5

• 0

• 1

• -1

Draw the circuit symbol for a NOT gate.

• A circle with a line through it

• A rectangle with two inputs

• A triangle pointing to the left with no circle

• The circuit symbol for a NOT gate is a triangle pointing to the right with a small circle at the output.

What is the truth table for an AND gate?

• | A | B | Output | |---|---|--------| | 0 | 0 | 0 | | 0 | 1 | 0 | | 1 | 0 | 1 | | 1 | 1 | 1 |

• | A | B | Output | |---|---|--------| | 0 | 0 | 0 | | 0 | 1 | 1 | | 1 | 0 | 0 | | 1 | 1 | 1 |

• | A | B | Output | |---|---|--------| | 0 | 0 | 1 | | 0 | 1 | 1 | | 1 | 0 | 1 | | 1 | 1 | 0 |

• | A | B | Output | |---|---|--------| | 0 | 0 | 0 | | 0 | 1 | 0 | | 1 | 0 | 0 | | 1 | 1 | 1 |

How many inputs can an OR gate have?

• An OR gate can have a maximum of five inputs.

• An OR gate can only have one input.

• An OR gate can have multiple inputs, commonly 2 to many.

• An OR gate can have exactly three inputs.

What is the output of a NOT gate when the input is 1?

• 1

• -1

• 0

• 2

Create a truth table for a combination of an AND and NOT gate.

• | A | B | A OR B | NOT (A OR B) |

• | A | B | A NAND B | NOT (A NAND B) |

• | A | B | A AND B | A OR B |

• | A | B | A AND B | NOT (A AND B) | |---|---|---------|---------------| | 0 | 0 | 0 | 1 | | 0 | 1 | 0 | 1 | | 1 | 0 | 0 | 1 | | 1 | 1 | 1 | 0 |

What is Boolean algebra?

• Boolean algebra is a type of computer programming language.

• Boolean algebra is a method for solving differential equations.

• Boolean algebra is a mathematical structure that captures the essence of logical reasoning using binary values.

• Boolean algebra is a statistical analysis technique.

How does the output of an OR gate change with different inputs?

• The output of an OR gate is always false regardless of the inputs.

• The output of an OR gate is true if at least one input is true.

• The output of an OR gate is true only if both inputs are true.

• The output of an OR gate is false if both inputs are true.