1) http://en.wikipedia.org/wiki/Quantum_computer#Bits_vs._qubits
I was under the impression that quantum computing used three states of a spinning electron, which would be spinning one way, the other way, or not at all.
http://en.wikipedia.org/wiki/Ternary_computer
http://en.wikipedia.org/wiki/Qutrit
Perhaps I was mixing trinary up with ternary. But can't trinary represent ternary logic?