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1.4 Garbage Outputs

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The output (outputs) of a reversible gate that is (are) not used as input to other gate or the output (outputs) that is (are) not treated as a primary output is (are) called garbage output (outputs). The unutilized outputs from a gate are called garbage outputs. A heavy price is paid for every garbage output. So, for any circuit design, the fewer the garbage outputs, the better.


Figure 1.1 A reversible gate.


Figure 1.2 Popular reversible gates.


Figure 1.3 Reversible Feynman gate.

Reversible and DNA Computing

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