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   Garrett Wollman (wollman@mastodon.social)'s status on Monday, 16-Jun-2025 14:15:34 JST Garrett Wollman

   • ICM

   @icm I was involved in the second shrink of NE43-250, the room where the CM-5 was. By the time I started, LCS no longer had any equipment in the old 9th floor machine room (see the document "How to turn off the 9th floor") which was mostly empty raised floor except for the southwest corner where the AI Sun-4 servers and the CM-2 were. In the late 1990s the old air conditioners and most of the raised floor were gutted to make a new AI Lab headquarters suite.

   • Alfred M. Szmidt repeated this.
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     Garrett Wollman (wollman@mastodon.social)'s status on Monday, 16-Jun-2025 14:15:33 JST Garrett Wollman

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     • ICM

     @icm I was also involved in the shrink of NE43-351 (these happened almost at the same time), when the old CIA vault was turned into office space and the machines that had been in the vault were moved into the rump machine room. This involved turfing out all of the remaining Symbolics 3650s, of which there were four: Zermatt, the file and Namespace server, and three others that belonged to the Clinical Decision-Making Group. All except Zermatt had remote displays connected over fiber.

     Alfred M. Szmidt repeated this.
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     Garrett Wollman (wollman@mastodon.social)'s status on Monday, 16-Jun-2025 14:15:52 JST Garrett Wollman

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     • ICM

     @icm In 1994, there were still a couple of 3650s on the 5th floor as well, used by PIs in the Advanced Network Architecture group (for whom I worked at the time). I'm not sure when those left, but they were certainly gone by 1997 when I took a different job and was rebuilding the network in NE43. There were a lot more Lispms still in use in the AI Lab but I never saw them until ca. 2000 when we started planning for the new building.