If the first position is a one then it is a one, the next position is two times the number, position 3 is two times that number and so on. Each bite is 8 bits.

If the first position is a one then it is a one, the next position is two times the number, position 3 is two times that number and so on. Each bite is 8 bits. Meaning 256 things to pick from. ASCII makes each letter a number which can fit in a bite. (I allowed myself ASCII on the basis that it isn't a word)