Retro & Online – Connecting Psion’s MC400 & Series 3a machines to “the internet”

Connecting 30-year old computers to the internet in 2021… for the LOLs. Revisiting RS232, null-modems and the like, all at 19200 baud.

MCMF – MF4 dialling for the Psion MC400

Back in the early 1990s I was a serious Psion-a-holic. If there was such a thing as “Psionaholics Anonymous” I would’ve been there. My first machine was the ground-breaking Series 3 and I was instantly hooked. After that I owned a Series 3a, Siena, Series 5 and later a Revo. These machines had soul. IContinue reading “MCMF – MF4 dialling for the Psion MC400”