Dude, it's probably a safe bet that the folks on here have some idea of what binary is. Heck, I think a couple of 'em might actually have invented binary. Or it could just be that we've already seen thatt-shirt a couple of hundred times now and it was really only funny the first time.
What I really meant is that the digit "1" represents a power of three. depending on the position in the byte that it occupies, so that trinary 10 is equal to decimal 3 (one x three + one x zero = three decimal).