Boolean Algebra invented by Gorge Bool.
is used to design computer logic circuits with truth tables.
- Boolean algebra only uses true(1) and false (0) values
- Three basic operations conducted on two or one inputs
OR : sum ("+") between two values A + B
AND : product ("*") between two values A . B
NOT : complement (" ' ") a value or invert (0 to 1 or 1 to 0)
7 Basic Rules of Boolean algebra
X = 0 or X = 1
0 . 0 = 0
1 + 1 = 1
0 + 0 = 0
1 . 1 = 1
1 . 0 = 0 . 1 = 0
1 + 0 = 0 + 1 = 1
The product of two input is like multiplication of numbers. The difference is that two numbers are always 1 or 0. (0 x 0, 0 x 1, 1 x 0, and 1 x 1).
The sum of two inputs is like adding two numbers. The only difference is that two numbers are always 1 or 0. (0 + 0, 0 + 1, 1 + 0, and 1 + 1).
Following 3 input logic circuits actually constructed with
two input gates. Boolean algebra is used to simplify logic circuits.
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