you can do it on your fingers... each finger is a bit... no fingers is 0, pinky 1, ring 2, middle 4, pointer 8, etc... once you get it down, counting bits is a breeze... i (missing on finger) can count to 512... math is still pretty hard... but can (...) (27 years ago, 3-Jun-97, to lugnet.robotics.handyboard)
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