Binary

Binary is a set of ones and zeros that make up characters or bits. 0 meaning off and 1 meaning on. Computers can only store information using bits. With 8 bits, it makes one byte. A bit is the smallest unit of data a computer can store Every bit can represent a character. E.g.

1 bit = 2 character: 1 or 0

2 bits = 4 characters: 00 or 01 or 10 or 11 4 bits = 8 characters: 0000 or 1111 or 0101 or 1010 or 1100 or 0011 or 1000 or 0111
0 0 0 0 0 0 0 0 = 1 byte = 8 bits and 8 bits = 128 characters.

Each bit represents a value in the denary system (base 10)