Getting started
Wait for the emulator window to appear, then click inside it before using the keyboard.
A classic machine, running again
Kaypro II Emulator 5.0
After 16 years, the original Java emulator is back online thanks to CheerpJ. This senior project is a complete emulation of a Kaypro II computer: from it's Z80 CPU, character ROM, to its floppy drives. The CP/M OS and programs are executed bit-for bit, just as they were on the original Kaypro II. Give the runtime and virtual disks a moment to load, then click inside the display to begin typing.
Runtime
CheerpJ is loaded over the internet and runs the original Java application in your browser.
Virtual disks
The Kaypro system and its virtual floppy disks are bundled with the emulator JAR.