Casio fx-702p from 1981 - Casio's first pocket computer - YouTube
Casio - The FX-702p series - - Pocket computer - Casio The FX702p series - Casio.ledudu.com - Casio pocket computer, calculator, game and watch library. - RETRO CALCULATOR FX PB SF LC SL HP FA
Casio FX-702P
Casio FX-702P Programmable Calculator [For Spare/Parts or Repair] | eBay