Related:

• OS: /O-S/ 1. [{Operating System}] n. An abbreviation heavily used in email, occasionally in speech.
  2. n.,obs. On ITS, an output spy. See "{OS and JEDGAR}" (in {Appendix A})....
• exec: /eg-zek'/ vt., n. 1. [UNIX: from `execute'] Synonym for {chain}, derives from the `exec(2)' call.
  2. [from `executive'] obs. The command interpreter for an {OS} (see {shell})...
• exec /eg-zek'/ or /eks'ek/ vt., n. 1. [Unix: from `execute'] Synonym for chain, derives from the exec(2) call.
  2. [from `executive'] obs. The command interpreter for an OS (see shell)...
• TOPS-10 /tops-ten/ n. DEC's proprietary OS for the fabled PDP-10 machines, long a favorite of hackers but now effectively extinct.
  A fountain of hacker folklore; see Appendix A....
• ITS /I-T-S/ n. 1. Incompatible Time-sharing System, an influential though highly idiosyncratic operating system written for PDP-6s and PDP-10s at MIT and long used at the MIT AI Lab.
  Much AI-hacker jargon derives from ITS folklore, and to have been `an ITS hacker' qualifies one instantly as an old-timer of the most venerable sort....
• MFTL /M-F-T-L/ [abbreviation: `My Favorite Toy Language'] 1.
  adj. Describes a talk on a programming language design that is heavy on the syntax (with lots of BNF), sometimes even talks about semantics (e....
• TOPS-10:: /tops-ten/ n. DEC's proprietary OS for the fabled {PDP-10} machines, long a favorite of hackers but now effectively extinct.
  A fountain of hacker folklore; see {Appendix A}....
• Weenix /wee'niks/ n. 1. [ITS] A derogatory term for Unix, derived from Unix weenie.
  According to one noted ex-ITSer, it is "the operating system preferred by Unix Weenie...
• ap: 1. n. A program interrupt, usually an interrupt caused by some exceptional situation in the user program.
  In most cases, the OS performs some action, then returns control to the program....