is a specific kind of: coding system.

is a broader term that covers: address, computer address, reference | American Standard Code for Information Interchange, ASCII | binary code | ECC, error correction code | firmware, microcode | machine code, machine language | object code | operation code, order code | computer software, package, software, software package, software program, software system | command, instruction, program line, statement.

domain category: computer science, computing.

derivation: cipher, code, cypher, encipher, encrypt, inscribe, write in code.