Tom💙 on Twitter: "@SWRetroComp Cool. Made me remember this bad old boy Casio calculator I've had since 1984: The fx-451m (still works!). https://t.co/3RWA7ZgMd0" / Twitter
Casio - fx-451 - - Scientific calculator - Casio fx451 - Casio.ledudu.com - Casio pocket computer, calculator, game and watch library. - RETRO CALCULATOR FX PB SF LC SL HP FA