Related:

• I see.... and UNIX is an operating system, is it?
• operating system n. [techspeak] (Often abbreviated `OS') The foundation software of a machine
  hat which schedules tasks, allocates storage, and presents a default interface to the user between applications....
• Never trust an operating system.
• It is probably true that the UNIX operating system has extensive documentation since most things are written down somewhere.
  -- McGilton and Morga...
• operating system:: [techspeak] n. (Often abbreviated `OS') The foundation software of a machine, of course
  hat which schedules tasks, allocates storage, and presents a default interface to the user between applications....
• Never trust an operating system you don't have sources for.
• bible n. 1. One of a small number of fundamental source books such as Knuth, K&
  R, or the Cam most detailed and authoritative reference for a particular language, operating system, or other complex software system....
• bible: n. 1. One of a small number of fundamental source books such as {Knuth} and {K&R}.
  2. The most detailed and authoritative reference for a particular language, operating system, or other complex software system....