See if you can guess what tech gadget this is:
(the answer is partway down the page for those who aren’t into guessing games or would like to cheat):

It is a device which could probably be called a mobile computer.
Its specifications are:
Clamshell design with a QWERTY keyboard.
Can create and edit Word documents, and Excel spreadsheets and synchronize with a PC.
Can print directly to a compatible printer.
Can connect to the internet to check email.
Multi-tasking operating system.
Voice recorder.
Touch screen.
Memory card expansion slot.

So what is it?

It is not the Sony Clie PEG-UX50 PDA, although from the specifications above it very well could be. It isn’t the Nokia E90 smartphone either, as the E90 lacks a touchscreen.

It is a handheld computer known as the Psion Series 5 which was released in 1997 (last century!). An article on the Psion Series 5 on Wikipedia has a lot of information, as well as an article on All About Symbian comparing the Nokia E90 Communicator with a Psion Series 5 (it also has a number of pictures comparing the two devices). Eric Lindsay has pages and pages of information on his website “Epoc and Psion Palmtops” about the full range of Psion palmtops over the years.

The most interesting thing I find about this PDA is that it was used instead of larger notebooks and could run for 35 hours on two AA batteries. Also, the EPOC Operating System which it ran eventually became the Symbian Operating system.