Binary code

The term binary code can mean several different things:

• There are a variety of different methods of coding numbers or symbols into strings of bits, including fixed-length binary numbers, prefix codes such as Huffman codes, and other coding techniques including arithmetic coding.
• binary and text files on computers are represented as binary codes
• and characters within text files can be represented by any of a number of character code systems, including ASCII, EBCDIC and Unicode.