Using USB to power old mobile/handheld computers
I took my old (1989 vintage) laptop out for a coffee to send some tweets & emails 🙂
An app written in 1996 to simulate making voice calls from a Psion Series 3a.
5250 days later – booting an old pentium computer that’s been in storage for ~14.5 years. This filthy beast used to be the defender of the home network running the Smoothwall GPL firewall.
Poking around in the old Psion SIBO SDK debugger – which looks like it’s based heavily on the MC’s GUI…
Re-purposing an old Psion MC400 laptop mechanical keyboard from 1989 to work with USB via a Teensy LC (Arduino compatible) microcontroller
Emulating a Psion MC400 over 30 years later – a 1989 80C86 based laptop being brought back to life in MAME.
A look at what state-of-the-art mobile text processing for journalists was like in the mid 1990s – the Psion MC400 EROS system.
I read an online post about creating an “MC400 emulator”. That got me thinking about the ROM, and the 28F010 flash chips that realise it…
Comparing comments (or the lack of them!) in software from 1969 & 1984. NASA’s Apollo Guidance Computer versus Elite for the BBC Model B 🙂