Norberg, Arthur L.; O'Neill, Judy E.; Freedman, Kerry J. "A history of the Information Processing Techniques Office of the Defense Advanced Research Projects Agency" The Charles Babbage Institute, The University of Minnesota, Minneapolis, MN, October 1992

(1992)

Languages mentioned

  • BESYS {1958} Command language for BESYS
  • MULTICS {1967} Command system for Multics