JavaOS
| Developer | Sun Microsystems |
|---|---|
| Written in | Java, C and C++ (parts of kernel) |
| OS family | Java |
| Working state | Discontinued |
| Source model | Closed source |
| Initial release | May 29, 1996 |
| Latest release | Final / August 23, 1999 |
| Available in | English |
| Platforms | ARM, PowerPC, SPARC, IA-32 (x86) |
| Kernel type | Microkernel |
| License | Proprietary |
JavaOS is a discontinued operating system based on a Java virtual machine. It was originally developed by Sun Microsystems. Unlike Windows, macOS, Unix, or Unix-like systems which are primarily written in the C or C++ programming languages, JavaOS is primarily written in Java. It is now considered a legacy system.