• We are familiar with numbers based on units of 10, a result of our 10 fingers. But, other number bases are possible.
• When using digital systems, we will use a variety of numbering systems (other than in units of 10).
• With computers, number bases that are multiples of 2 are favored.
• For each base we count as usual, but the numbers stop at some value, then a more significant digit is added.