Logic Gates and Their Functions

This video introduces logic gates and circuits, explaining the NOT, AND, OR, and XOR gates. It provides tips for remembering gate symbols and introduces advanced gates like NAND and NOR. The video is aimed at GCSE students but also touches on A-level content.

What is the primary function of logic gates in circuits?

• To delete data

• To transmit data

• To process data

• To store data

Which of the following is NOT a type of logic gate mentioned in the introduction?

• NAND gate

• XOR gate

• OR gate

• AND gate

What does a NOT gate do to its input?

• It reverses the input

• It stores the input

• It amplifies the input

• It transmits the input unchanged

If the input to a NOT gate is 1, what is the output?

• 3

• 2

• 0

• 1

For an AND gate to output 1, what must be true about its inputs?

• Both inputs must be 0

• At least one input must be 1

• One input must be 0 and the other must be 1

• Both inputs must be 1

What is the output of an AND gate if one input is 0 and the other is 1?

• 2

• 3

• 0

• 1

Which gate outputs 1 if at least one of its inputs is 1?

• XOR gate

• OR gate

• AND gate

• NOT gate

How does an XOR gate differ from an OR gate when both inputs are 1?

• Both gates output 0

• XOR gate outputs 1, OR gate outputs 0

• Both gates output 1

• XOR gate outputs 0, OR gate outputs 1

What is a NAND gate equivalent to?

• An AND gate followed by a NOT gate

• An OR gate followed by a NOT gate

• A NOT gate followed by an AND gate

• A NOT gate followed by an OR gate

What happens to the output of an OR gate when it is combined with a NOT gate?

• The output remains the same

• The output is reversed

• The output is stored

• The output is amplified