PSION Series 3

The first truly useful Personal Digital Assistant (PDA). This featured a Word Processor, Spreadsheet (with charts/graphs), Calendar, World Clock and Address Book.

The storage is RAM based on relies on batteries. It runs on 2x AA batteries with a CR1620 for backup.

Solid state storage (or software disks) can be inserted into the slots on the left and right.

Software could be written using OPL (Organiser Programming Language).