Psion MC400

Psion MC400 - a 7.68MHz 80C86 256k RAM 256k ROM laptop from 1989 connected to the internet

[Psion MC400 @PsionMC400]

@m0cvo Filthy/Gorgeous

[Psion MC400 @PsionMC400]

Little brother to the #Psion #MC400 is here :-)

[Christian Farrow @zedstarr]

Possibly the nerdiest thing I've ever done #Psion #retrocomputing #vintagetech #retrocomputer

https://t.co/rPzGTfQSpP

[2g-gsm @2g_gsm]

Centralised or distributed BSC was a key question to consider when deciding on GSM network architecture. Mercury one2one opted for mainly centralised while Orange mainly distributed. Orange used Nokia BSCs, one2one used Ericsson (photo) & Nortel #2G #GSM #historyoftechnology

[2g-gsm @2g_gsm]

Wireless Application Protocol (WAP) was set to revolutionise mobile Internet access, adverts such as "Surf the BT Cellnet" somewhat oversold the service but nonetheless, WAP played a role in developing the mobile data market. #2G #GSM #WAP #Internet
https://t.co/uqPVqJzVCw

[Christian Farrow @zedstarr]

Backing up like it's 1995... #Psion 3a 2M connected via RS232/USB adapter at 19200 baud to #raspberrypi 4 8GB running MCLINK.EXE in #DOSBox-staging on #Fedora 37 aarch64 ARM #Linux

[Christian Payne @Documentally]

Tidying up my shed/office and wondering why I’ve got a stack of random magazines. I’d thrown a bunch of them away before opening up a few to see why I kept them. It turns out that I used to hang on to magazines I had photos in. Anyone else do that?

[Lord Arse! @Lord_Arse]

Voyetra Audiostation.

[Psion MC400 @PsionMC400]

It lives!

[Psion MC400 @PsionMC400]

Faxing like it's 1995! #3Fax #Psion #Series3 #Series3a #RetroComputing #retrocomputer #pda #fax

[Psion MC400 @PsionMC400]

@RetroBoxRoom @cr0bar Although E and F are actually represented on the keypad as * and #...

[Psion MC400 @PsionMC400]

@RetroBoxRoom @cr0bar Yes you have - in DTMF signalling there are 4 freqs in the low group and 4 in the high group giving you 16 options. Psion lets you dial all 16 👍🏻📞☎️

[Psion MC400 @PsionMC400]

@RetroBoxRoom @cr0bar Funny you should say that...
😂😁😎😁😎

[Christian Farrow @zedstarr]

I bought this #1G #analog #tacs phone as a prop for an 80s themed party... Then brought it (briefly) back to life with #limesdr and #osmocom https://t.co/uIibQOfKD7

[Christian Farrow @zedstarr]

Fascinating piece of British computing history from 1995: #Psion MC400 EROS mobile text processing system for journalists including 2400bps PSTN dial-up or Ericsson #Mobitex #Mobidem radio data network support
https://t.co/G6fZxnzu6d
@960sutton @NigelLinge

[Psion MC400 @PsionMC400]

@zedstarr Great thx