0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0

A bit (binary digit) is a single datum that is either 0 or 1. 0 can be represented by a light turned off and 1 by a light turned on.To represent more than one possible value, we use more than one bit. Two bits give us four possible values (00, 01, 10, 11) and three bits give us eight (000, 001, 010, 011, 100, 101, 110, 111). Click on a square to turn it on and find out how many possible values four bits can give!

Combinations found so far: 0

Congrats! You did it! You found everything!

One bit gives us one combo, two bits give us four combos, three bits give us eight combos, and four bits give us 16. Noticed a pattern here? Yep, that's right: The number of combos = 2n, where n is the number of bits we have.