Logic Gates
Computers use special switches called logic gates to process data. These gates can be grouped together to form logic circuits. There are three main logic gates: AND, OR and NOT.
AND Gate
The AND gate outputs 1 only if both inputs are 1. This is the symbol that is used to represent the AND gate:
OR Gate
The OR gate outputs 1 if one or both of the inputs are 1. This is the symbol that is used to represent the OR gate:
NOT Gate
The NOT gate reverses the input, so if 1 is inputted, 0 is outputted and vice versa. This is the symbol that is used to represent the NOT gate:
