We Can Figure This Out.org
Virtual Lab: Quantum-dot Cellular Automata - Logic Gates
University of Virginia
             
 
© 2003-Present, John C. Bean
 
OR gate:

To create an OR gate, all we have to do is to fix one of the MAJORITY gate inputs at "1."

Then if either (or both) of the remaining inputs goes to "1" it will be guaranteed that the majority of the inputs is "1" forcing the output to "1."

Here we choose to fix the C input at "1" (and insert an anchor symbol to emphasize its unchanging state).

 
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