Lest we forget: MULTICS

[DBrown at HI-MULTICS.ARPA]

Re pipes & linking:
  dynamic linking ad pipes have little relation to each other.
  the Multics equivalent of a pipe ia an active function, which returns
its result as a string for the command interpreter to use (much like the
x = `some_program` construct in the Unix shell).
  pipes avoid having data written to a (possibly huge) tempfile before
further processing can continue, and are therefore reall more of an
interprocess communication than a linking mechanism.
  Dynamic linking, in retrospect, is mostly usefull in maintenance of
existing progras, not development.  (about which, much later)
 --dave (unix hack on a 'bun) brown