Computer Data
Computer data is in what is called binary format. This means that it is always a 0 or a 1. It only has these two states and must be in one of them.
There are several fundamental data units which include:
Bit - A data unit which must be in one of the two binary states described above. It is the smallest data unit that exists.
Byte - 8 bits of data which has a possible value from 0 to 255.
Word - Two bytes or 16 bits of data with a possible unsigned value from 0 to 16535.