Home of the original IBM PC emulator for browsers.
A PCjs emulation of the Texas Instruments TI-57 Programmable Calculator is shown below.
Additional ready-to-run configurations include:
Above, you’ll find a few EC-4000 programs I wrote back in 1978-1979. These are some of my earliest “computer programs,” written when I was in high school, so needless to say, they come with no guarantees. Use at your own risk.