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Electronics/Combination gates
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Complement of Basic Logic gates
{| class="wikitable" width=100%
!Basic Gates !! Combination Gates!! Symbol !! Mathematical Expression
|-
| BUFFER|| 100px 100px|Cổng NOT (NOT Gate) || 100px || Y = is NOT NOT A Y = A
|-
| NOT || 100px 100px|Cổng NOT (NOT Gate) || 100px|Cổng NOT (NOT Gate) || Y = is NOT A
|-
| NAND || 100px 100px|Cổng NOT (NOT Gate) || 100px || Y = NOT A AND B
|-
| NOR || 100px 100px|Cổng NOT (NOT Gate) || 100px || Y = NOT A OR B
|-
| XNOR || 100px 100px || 100px || Y = NOT A NOR B
|-
|}
Truth table of the combination gates
{| class="wikitable" width=100%
! A !! B !! Q = A !! Q = NOT A !! Q = A NAND B !! Q = A NOR B !! Q = A XOR B
|-
| 0 || 0 || 0 ||1 || 1 || 0 || 0
|-
| 0 || 1 || 0 || 1 || 1 || 0 || 1
|-
| 1 || 0 || 1 || 0 || 1 || 0 || 1
|-
| 1 || 1 || 1 || 0 || 0 || 1 || 0
|-
|}
XOR
(A AND B) OR (A OR B) = A XOR B
(A.B) + (A+B) = A+B