Boolean algebra uses variables and operators to represent logic circuit. The variables and function have only one value, 0 and 1, high and low. The complement of a variable is shown by a bar over the letter such as A with a straight line above it, or apostrophe A'.
AND gate represent multiplication operation of input value.
OR gate represent adding operation of input value.
NOT or inverter will inverting the input value.
NAND or NOT AND represent multiplication and inverting the input value.
NOR or NOT OR represent adding and inverting the input value.
A clip below shows you the graphical symbol and truth table for each gate.
1 + 1 = 0
1 + 0 = 1
1 x 1 = 1
1 x 0 = 0
The name of gates, graphical symbol, algebraic expressions and truth table for each gate as shown below.
1. AND
2. OR
3. NOT
4. NAND
also can be drawn as below
5. NOR
also can be drawn as below
posted by: Nurul Faizah binti Sasaruddin - B031210257