Related:

• dinosaurs mating n. Said to occur when yet another big iron merger or buyout occu
  eflects a perception by hackers that these signal another stage in the long, slow dying of the mainframe industry....
• GCOS:: /jee'kohs/ n. A {quick-and-dirty} {clone} of System/360 DOS that emerged from GE around 1970
  originally called GECOS (the General Electric Comprehensive Operating System)....
• GCOS /jee'kohs/ n. A quick-and-dirty clone of System/360 DOS that emerged from GE around 1970
  originally called GECOS (the General Electric Comprehensive Operating System)....
• mainframe: n. Term originally referring to the cabinet containing the central processor unit or `main frame' of a room-filling {Stone Age} batch machine.
  After the emergence of smaller `minicomputer' designs in the early 1970s, the traditional {big iron} machines were described as `mainframe computers' and eventually just as mainframes....
• mainframe n. Term originally referring to the cabinet containing the central processor unit or `main frame' of a room-filling Stone Age batch machine.
  After the emergence of smaller `minicomputer' designs in the early 1970s, the traditional big iron machines were described as `mainframe computers' and eventually just as mainframes....
• Multics /muhl'tiks/ n. [from "MULTiplexed Information and Computing Service"] An early time-sharing operating system co-designed by a consortium including MIT
  GE, and Bell Laboratories as a successor to CTSS....
• 0: Numeric zero, as opposed to the letter `O' (the 15th letter of the English alphabet).
  In their unmodified forms they look a lot alike, and various kluges invented to make them visually distinct have compounded the confusion....
• Multics:: /muhl'tiks/ n. [from "MULTiplexed Information and Computing Service"] An early (late 1960s) timesharing operating system co-designed by a consortium including MIT
  GE, and Bell Laboratories. Multics was very innovative for its time --- among other things, it introduced the idea of treating all devices uniformly as special files....
• multician: /muhl-ti'shn/ [coined at Honeywell, ca. 1970] n.
  Competent user of {{Multics}}. Perhaps oddly, no one has ever promoted the analogous `Unician'....