Notes from building a PDP-11/70 emulator in the browser — the machine room, the teletype, the paper tape, and the Soviet SM-4 I am really after.
Newest first. There is also a feed: feed.xml.
2026-09-24
SIMH exists, it is excellent, and I did not use it. This is the second half of the story: the engineering compromises, the debugging, the architectural debts — and why the machine room was worth building twice.
2026-09-03
I grew up with Soviet PDP-11 clones. Thirty years later I built a PDP-11/70 emulator in the browser to get that machine room feeling back — and this is what it cost.