Found when https://www.hactrn.net/sra/alice/index.html was mentioned on the TUHS mailing list.
https://www.hactrn.net/blog/2019/04/17/threads-considered-harmful/ links to https://glyph.twistedmatrix.com/2014/02/unyielding.html
The plan in https://www.cs.toronto.edu/~sme/CSC340F/humour.html sounds all too familiar.

Found via http://www.bobeager.uk/emas/index.html

Emacs /ˈiːmæks/, originally named EMACS (an acronym for "Editor MACroS"), is a family of text editors that are characterized by their extensibility. The manual for the most widely used variant, GNU Emacs, describes it as "the extensible, customizable, self-documenting, real-time display editor". Development of the first Emacs began in the mid-1970s, and work on its direct descendant, GNU Emacs, continues actively; the latest version is 28.2, released in September 2022.

Nice story, including bits about the history of serial interfaces going back to Samuel Morse.

Interesting reference to the The Harvard/Radcliffe Student Time-sharing System Terminal Users Guide,
1st edition, September 10, 1974, Center for Research in Computing Technology, Harvard University
On 2023-07-12, the original URL https://minnie.tuhs.org/pipermail/tuhs/2022-September/026512.html is not working, replacing minnie by www corrects that.

ssh unix50 at unix50.org

AC Frequency Monitor
Panda display panel for a simulated pdp-10 http://sparetimegizmos.com/Hardware/Panda.htm found on http://panda.trailing-edge.com/

Found via https://www.hpmuseum.org/forum/thread-17957-post-156688.html#pid156688

Found via the TUHS mailing list https://www.tuhs.org/pipermail/tuhs/2021-December/024902.html
This post describes his org-mode setup, but other entries about his work on various emulators are interesting too.

Article from Tom Duff, August 1987
Executable files in the Ninth Edition of the UNIX system contain small amounts of unused space, allowing small code sequences to be added to them without noticeably affecting their functionality. A program fragment that looks for binaries and introduces copies of itself into their slack space will transitively spread like a virus. Such a virus program could, like the Trojan Horse, harbor Greeks set to attack the system when run by sufficiently privileged users or from infected set-userid programs.