While 1984's original Psion Organiser had delivered a usable pocket computer, it was the Organiser II that set the standard for what would become known as Personal Digital Assistant devices. The Organiser II was released in three main guises - CM (8K), XP (16K) and LZ (32K). The LCD display on this XP model allows 2 lines of 16 characters (itself an upgrade from the single line offered by the Organiser I). The display on the CM was the same, but the LZ had a larger offering of 4 lines of 20 characters. Information was stored on EEPROM-based or battery-backed DATAPAKs, which slot into the back of the device and stored between 8K and 128K. In addition to allowing diary and address book functionality, programs could be written using OPL (Organiser Programming Language).
Psion, 1986

Donated/on loan from: Centre for Security, Communications and Network Research (CSCAN), Plymouth University

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Psion Series 3A

Psion Series 3A

TBC (read more)
Psion, 1993

Psion Series 3c

The third variant to be released within Psion's popular Series 3 range, which began in 1991, the 3c displayed here is a 1MB device running an NEC V30H processor at 7.68MHz. One of the notable advantages of the device was the long life (20-35 hours) that it was able to squeeze out of two AA batte... (read more)
Psion, 1996

Psion Series 3

Psion Series 3

Psion Series 3 boxed with full set of manuals.

Additional items include:

Parallel Link
Serial Link
Spell checker/thesaurus (read more)
Psion, 1991