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Tag Archives: retro

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.

Posted byzedstarr11/06/202118/10/2022Posted inpsion, raspberry pi, techTags:mc400, nodemcu, psion, raspberry pi, retro, retro-computers, retro-computing, tech3 Comments on Retro & Online – Connecting Psion’s MC400 & Series 3a machines to “the internet”

MCMF – MF4 dialling for the Psion MC400

Adding MF4 (DTMF) dialling capabilities to the legendary Psion MC400 laptop from 1990

Posted byzedstarr19/04/202124/02/2023Posted inpsion, tech, telecomTags:dtmf, epoc, mc400, mf4, psion, retro, retro-computers, retro-computing, sibo, telecom4 Comments on MCMF – MF4 dialling for the Psion MC400

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