Kansas City Standard data cassette

The Kansas City Standard is a system for storing data on cassettes. It was devised at a symposium in Kansas City in November, 1975, convened by Byte magazine, which published the resulting standard in its February 1976 issue. This format was used by a number of systems, especially S-100 bus systems (the same sorts of systems that generally used CP/M when they acquired disk drives).

Some systems using this system:
 * Acorn
 * Casio (calculators, keyboards)
 * Exidy Sorcerer
 * Ohio Scientific
 * Processor Technology (SOL-20)

Documentation

 * Byte article explaining this system
 * Cassette interface assembly/testing manual from maker of SOL-20
 * Wikipedia article