Algodoo

Use J and K keys to toggle inputs.

A Flip Flop can store 1 bit of information. See more at

http://hyperphysics.phy-a … op.html#c2

Rev A: Added border to prevent problems from back reflections.

Note: I was going to make a BCD counter, 4 bit decoder, and 7 segment display, but the lag was too large. It may be possible on faster machines. I could just do the 4 bit decoder and 7 segment display, but that has already been done in Phun by rangycrow:

http://www.algodoo.com/al … p?id=50811