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The ~ (tilde) escape character in UNIX cu (call UNIX) did the same thing in the 1970s, when the remote system was on the other side of a telephone modem or other serial port. I thi…

see also https://wikichip.org/

Ouch. Danya was a great player (world rank 151, USA rank 17). Popular player, teacher, streamer and chess event commentator. Studied at Stanford. The NY Times' current chess column…

I can get a bunch right, especially question 48 - that's me. (hi rob) :) Still hacking after all these years.

https://www.yhchang.com/

I think I remember (1980s/90s) if you were copying a file to/from a remote host (with ftp or something), you could improve the throughput speed by pinging the remote. Maybe etherne…

Regarding resampling to 8kHz, traditional telephony resampled to 300 Hz to 3400 Hz. AM (medium wave) radio was up to about 5000 Hz https://en.wikipedia.org/wiki/Voice_frequency

re: At the time, Unix wasn't even widely available outside Bell Labs and a few places; it definitely wasn't available to Knuth or most of the column's readers. At that time, 1986, …