Psion Series 5

Common card · No. 397632

The Psion Series 5 is a personal digital assistant (PDA) from Psion. It was available in two main variants, the Series 5 (launched in 1997) and the Series 5mx (1999), the latter having a faster processor, clearer liquid crystal display (LCD), and updated software. There was also a rare Series 5mx Pro, which differed only in having the operating system (OS) loaded into random-access memory (RAM) and hence upgradeable. Ericsson marketed a version of the Series 5mx renamed as MC218. The Psion Series 5 succeeded the Psion Series 3; there was never a Psion Series 4, due to concern about tetraphobia in Asian markets. The external appearance of the Psion Series 5 and the Psion Series 5mx are broadly similar, but their mainboards, screens and other internal components were different and not interchangeable. The Series 5 was the first to feature a clamshell design, whereby the keyboard slides forward as the device opens to counterbalance the display, and brace it such that touchscreen actuation...

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