Binary digits combine to create one byte?

Answer 1

One BYTE is always 8 BITs. (Binary digITs)

Some data protocols use a different number of bits to define a character, most systems today use 8 bits, some older systems used 5 bits or 7 bits. But a BYTE is always 8 bits regardless. (a NIBBLE is half a byte - 4 bits).

Answer 2

8