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Operating system used at the Stanford AI Lab. It ran on a PDP-6, KA10, and KL10 connected together in various configurations. The name unofficially means "West-coast Alternative to ITS" (although this may be a 'backronym' - a SAIL page which discusses the meaning of the name does not mention it).

It also ran on PDP-10 clones at Stanford, manufactured by Foonly; one at CCRMA, and one at the S-1 project.

In modern times, WAITS is running on a KL10 at the Living Computers Museum, and on Richard Cornwell's KA10 emulator.

Version history

Versions and events for the main WAITS track at SAIL. Offshots include CCRMA and LLL S-1 project, both running on Foonly machines.

  • The Stanford AI Lab acquired a PDP-6 in June 1966.
  • The SAIL monitor was based on an early PDP-6 Monitor from DEC.
  • The 2 series monitor had storage on DECtapes only.
  • A PDP-10 was installed September 1968.
  • The 6 series introduced the use of disk file storage.
  • The first monitor version recorded on tape is Stanford 6.09F, from 1972-10-02.
  • The last 6 series version is Stanford 6.19/B from 1975-04-14.
  • The 7 series added use of the BBN pager.
  • Stanford 7.01 dates from 1975-04-19.
  • The last 7 series version is Stanford 7.05/I/1400P from 1976-05-06.
  • The 8 series marked the port to the KL10 processor.
  • Stanford 8.00 is from 1976-06-06.
  • 1978-04-09 marks the renaming of the system with WAITS 8.70/I.
  • The last 8 series version is SU-AI WAITS 8.73/Q from 1978-12-21.
  • The 9 series monitors had the "P2 processor separate" (unclear).
  • SU-AI WAITS 9.01 is from 1978-12-30.
  • The disk system moved to RH20 and RP07 drives in 1983.
  • The ultimate version is SAIL.Stanford.EDU WAITS 9.18/M from 1990-04-26.
  • WAITS was shut down permanently on Friday 7 June 1991.

External links