On Tue, 01 Nov 2011 20:00:22 -0600, Tony Hwang wrote:
Binary is the only number logical and computer understands.

In the digital world, the Soviets built a ternary (i.e. 3-state) machine
in the '50s ("Setun", I think it was) which was supposedly quite
successful. Binary became the standard, though, and components were
designed for it rather than other numerical systems, so it's not an
exercise that's been repeated - but more to do with cost than anything.

Don't forget analog computers, either, where the state of a wire can
represent an infinite number of values.

cheers

Jules