Logic gates

Question 1

What is a logic gate

Answer 1

A bistable device as in, it can only have two stable states (1 / 0). It is the building block of most electronic circuits eg. microphones, cameras, compooters

Question 2

Bistable device

Answer 2

exists in 2 stable states

Question 3

Tell me about the NAND gate

Answer 3

Output is 1 if input A AND B are NOT both 1 and
Output is 0 if input A AND B are NOT both 0
When there is a low input(0) at either or both inputs, the output is high (1)

Question 4

Tell me about the AND Gate

Answer 4

Output is 1 if input A AND B are 1 (high)
Output is 0 if input A AND B are 0 (low)

Question 5

Tell me about NOT Gate or inverter

Answer 5

It produces ‘high’ output if the input is ‘low’
It produces ‘low’ output if the input is ‘high’
(output is opposite to the input)

Question 6

Tell me about OR gate

Answer 6

output is 1 if input A OR input B OR both are 1

Question 7

tell me about NOR gate

Answer 7

When either or both inputs are high, the output is low