The IBM 1816 was a Selectric typewriter based printer-keyboard for the IBM 1800 Data Acquisition and Control System. It was introduced in 1964 along with its host system. Whilst exact production lifetime data for 1816s is not presently known, around two thousand 1800s were sold. Applications for the 1800 included oil refining, traffic control, manufacturing, testing, utilities, and even aerospace. Big names that have used an IBM 1800 include Buick, CERN, Ford, NASA and the United States Air Force2.