| Developer | University of Waterloo |
|---|---|
| Written in | Eh, Zed, assembly language |
| OS family | RTOS |
| Working state | Discontinued |
| Initial release | October 1976 |
| Marketing target | Research |
| Available in | English |
| Update method | Recompiling |
| Platforms | Honeywell 6050 Data General Nova 2 Texas Instruments TI990/10 |
| Kernel type | Microkernel |
| Succeeded by | Port, Verex, Harmony, V |
Thoth is a real-time, message passing operating system (OS) developed at the University of Waterloo in Waterloo, Ontario Canada.