In the four years since the first Raspberry Pi appeared, there have been many takes on a portable computer based on it ... inspired by the Psion portable computers of the late 1990s.

Weighing well under five pounds with surprisingly typical dimensions for a laptop, the Psion MC-400 mobile computer was powered by a 7.68MHz Intel 80C86 processor and featured a 640x400 LCD with ...

yet as an early stab at a PDA as well as general purpose computer it’s visibly an ancestor of the devices we carry today. Of course, as the Psion was produced before the advent of affordable ...

In an era dominated by sleek business laptops and multifunctional tablets, the idea of a portable digital typewriter might seem like a step back in time. Some companies, however, are counting on ...