its

from The Collaborative International Dictionary of English v.0.48
Its \Its\ ([i^]ts), poss. pron.
   Possessive form of the pronoun it. See {It}.
   [1913 Webster]
    
from Jargon File (4.4.4, 14 Aug 2003)
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. ITS pioneered many
   important innovations, including transparent file sharing between
   machines and terminal-independent I/O. After about 1982, most actual
   work was shifted to newer machines, with the remaining ITS boxes run
   essentially as a hobby and service to the hacker community. The
   shutdown of the lab's last ITS machine in May 1990 marked the end of
   an era and sent old-time hackers into mourning nationwide (see {high
   moby}). There is an ITS home page.

   2. A mythical image of operating-system perfection worshiped by a
   bizarre, fervent retro-cult of old-time hackers and ex-users (see
   {troglodyte}, sense 2). ITS worshipers manage somehow to continue
   believing that an OS maintained by assembly-language hand-hacking that
   supported only monocase 6-character filenames in one directory per
   account remains superior to today's state of commercial art (their
   venom against {Unix} is particularly intense). See also {holy wars},
   {Weenix}.
    
from The Free On-line Dictionary of Computing (8 July 2008)
ITS

   1. Incompatible {time-sharing} System

   An influential but highly idiosyncratic {operating system}
   written for the {PDP-6} and {PDP-10} 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.  ITS
   pioneered many important innovations, including transparent
   file sharing between machines and terminal-independent I/O.
   After about 1982, most actual work was shifted to newer
   machines, with the remaining ITS boxes run essentially as a
   hobby and service to the hacker community.  The shutdown of
   the lab's last ITS machine in May 1990 marked the end of an
   era and sent old-time hackers into mourning nationwide (see
   {high moby}).  The Royal Institute of Technology in Sweden is
   maintaining one "live" ITS site at its computer museum (right
   next to the only {TOPS-10} system still on the {Internet}), so
   ITS is still alleged to hold the record for OS in longest
   continuous use (however, {WAITS} is a credible rival for this
   palm).

   2. A mythical image of {operating system} perfection worshiped
   by a bizarre, fervent retro-cult of old-time hackers and
   ex-users (see {troglodyte}).  ITS worshipers manage somehow to
   continue believing that an OS maintained by {assembly
   language} hand-hacking that supported only monocase
   6-character filenames in one directory per account remains
   superior to today's state of commercial art (their venom
   against {Unix} is particularly intense).

   See also {holy wars}, {Weenix}.

   [{Jargon File}]

   (1994-12-15)
    
from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)
ITS
       Incompatible Time-sharing System (DEC)
       
    
from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)
ITS
       International Telecommunications Society (org.)
       
    

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