Add another switch
Now you have three switches.
Eight possible combinations.
0 through 7.
111 becomes 7.
001 becomes 1.
Each bit you add doubles what you can represent.
With 4 bits, what would be the highest number you could represent?
Now you have three switches.
Eight possible combinations.
0 through 7.
111 becomes 7.
001 becomes 1.
Each bit you add doubles what you can represent.
With 4 bits, what would be the highest number you could represent?