Even the lightest old APL computers I am familiar with, the Ampere WS-1 (Japan 1...

		jecel on Dec 1, 2017 \| parent \| context \| favorite \| on: Gemini PDA: 20 years on, meet the all-new Psion Se... Even the lightest old APL computers I am familiar with, the Ampere WS-1 (Japan 1985) and the MCM 70 (Canada 1974), were giants compared to the Psion 5. http://www.old-computers.com/museum/computer.asp?c=66 http://www.old-computers.com/museum/computer.asp?c=346 I am pretty sure you weren't thinking of the IBM 5100.

The Ampere WS-1 strikes me as familiar but I thought it was much smaller than that. Nice find.