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Digital Electronics/Logic Gates/Fundamental Digital Gates
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Digital Gates
Digital gate is a Digital Device used to perform the logic operation on the input(s) to produce an equivalent logic in the output. The output produced from the inputs are listed in a table called a Truth table. The relation between output and inputs can also be represented by a mathematic equation .
There are 5 basic digital gates used to perform Logic Operation namely /Buffer/, /NOT/, /AND/, /OR/, /XOR/
Basic Digital Gates
{| class="wikitable" width=100% align=left
!Basic Logic Gates !! Symbol !! Mathmatical Formula !! Truth Table
|-
| Buffer || 100px || Q = A ||
A Q 0 0 1 1
|-
| NOT || 100px || Q = NOT A ||
A Q 0 1 1 0
|-
| AND || 100px|Left|AND Gate || Q = A . B ||
A B Q 0 0 0 0 1 0 1 0 0 1 1 1
|-
| OR || 100px || Q = A + B ||
A B Q 0 0 0 0 1 1 1 0 1 1 1 1
|-
| XOR || 100px || Q = A (+) B ||
A B Q 0 0 0 0 1 1 1 0 1 1 1 0
|-
|}