normal computers compute on bits, which are in 1 or 0. (see figure 1) This makes for how we use computers today; a long string of 1s and 0s that tell the computer what to do and say. quantum computers can be 0, 1 or any combination of probabilities of the two. they can even be in some other states beyond combinations of 0 and 1! (see figure 2)
this is an example of how normal bits work; they can be in 0 or 1, but not both, and they can only be 0 or 1.(figure 1^)
this shows how quantum computers work; the state of the quibit can be ANYWHERE on the surface of the sphere, with each state having its own properties.
this will be expained further on the about page.(figure 2^)