Casio FX870P Emulator
A developer has created a browser-based emulator for the 1986 Casio FX-870P pocket computer using TypeScript and Vue 3. The project includes features like keyboard mapping, a BASIC program library, and floppy disk emulation via the Origin Private File System.
Why it matters
This project preserves vintage computing history by making legacy hardware accessible and functional on modern web browsers.
A browser-based emulator for the Casio FX-870P (also sold as the VX-4) pocket computer, written in TypeScript and Vue 3.
The FX-870P was a 1986 programmable calculator running a Hitachi HD61700 CPU at 921 kHz with a 96×64 pixel LCD, 83-key keyboard, serial port, and optional MD-120 floppy drive. This emulator is a full port of the original Delphi reference implementation to the web platform.
The original emulator is available on the PISI and credit is given to the original author of the amazing suite of emulators available on this site. This implementation is designed to purely make the code behind that emulator available to a wider audience on the internet.
This version of the emulator implemented by Mark Wickens , the source code is hosted on GitHub here and it is hosted if here you want to try it .
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