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Casio - FP-1000 - - Casio FP1000 - Casio.ledudu.com - Casio pocket computer, calculator, game and watch library. - RETRO CALCULATOR FX PB SF LC SL HP FA
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Casio Z-1GR 16-Bit Pocket Computer from 1997 - YouTube
File:Vintage Casio Computer Quartz CQ-1 Electronic Pocket Calculator, Made in Japan, Circa 1975 (11574678186).jpg - Wikimedia Commons
CASIO FX-880P Personal Computer Teardown
John Wolff's Web Museum - The Casio Computer Company