Logic Gate: OR Gate

What is a logic gate?

• A device that produces electricity
• A type of computer memory
• A device that performs a basic operation on electrical signals
• A type of computer processor

What does an OR gate do?

• It performs an AND operation
• Performs a logical OR operation on two inputs

• It performs a NOT operation
• It performs an XOR operation

In an OR gate, when is the output 'ON' (or '1')?

• When both inputs are 'OFF' (or '0')
• When one input is 'ON' (or '1') and the other is 'OFF' (or '0')
• When both inputs are 'ON' (or '1')
• When at least one input is 'ON' (or '1')

Which symbol is used to represent an OR gate in a logic diagram?

• ∧

• ¬

• ⊕

• ∨

If you have two switches connected to an OR gate, and one switch is turned 'ON,' what will the output be?

• OFF

• ON

• It depends on the other switch

• Always ON

How many inputs does an OR gate typically have?

• 1
• 2
• 3
• 4

What is the output of an OR gate when both inputs are 'OFF' (or '0')?

• ON

• OFF

• It depends on the gate

• Cannot be determined

In a car alarm system, an OR gate is used to activate the alarm when either a door is opened or a window is broken. What does this mean?

• The alarm will only activate if both a door is opened and a window is broken.

• The alarm will never activate.

• The alarm will activate if either a door is opened or a window is broken, or both.

• The alarm will activate only if a door is opened.

What is the truth table for an OR gate with two inputs? A) It doesn't have a truth table.

• 0 OR 0 = 0, 0 OR 1 = 1, 1 OR 0 = 1, 1 OR 1 = 0

• It doesn't have a truth table.

• 0 OR 0 = 1, 0 OR 1 = 0, 1 OR 0 = 0, 1 OR 1 = 1

• 0 OR 0 = 0, 0 OR 1 = 0, 1 OR 0 = 0, 1 OR 1 = 1

Which of the following best describes the OR gate's behavior?

• It only produces an output when both inputs are the same.

• It produces an output when either or both inputs are 'ON.'

• It produces an output when both inputs are 'OFF.'

• It always produces an output, regardless of the inputs.