Psion 3c with navigation system, c 1990s.
3 4 c m
actual image size: 32cm x 26cm

Psion 3c with navigation system, c 1990s.

© Science Museum / Science & Society Picture Library


The increasing miniaturisation of computer technology and the desire for portable computers which could be used while out of the office led to the development of laptop computers. The palmtop computer, such as this example manufactured by Psion Computers plc, England, took the proces a stage further. Rather than using a mouse and pointer to click on the icons on the desktop, palmtop computers use a stylus which is physically tapped on the screen. The Psion 3 series incorporates a navigation system which combines GPS (Satellite Global Positioning System) with traditional navigation techniques, enabling the user to pinpoint their position anywhere in the world.

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