Domain/OS
| Domain/OS | |
|---|---|
 | |
 Domain/OS 10.4, showing a Display Manager (DM) session | |
| Developer | Apollo Computer, Hewlett-Packard |
| Written in | Pascal |
| OS family | Multics-like and Unix-like |
| Working state | Historic |
| Initial release | March 27, 1981 (Aegis SR1) |
| Latest release | Domain/OS SR10.4.1.2 / March 1992 (for SR10.4) |
| Available in | English |
| Supported platforms | Apollo/Domain workstations |
| Kernel type |
|
| Userland | AEGIS, BSD, System V |
| Default user interface | DM windowing system, CLI |
Domain/OS is the discontinued operating system used by the Apollo/Domain line of workstations manufactured by Apollo Computer. It was originally launched in 1981 as AEGIS, and was rebranded to Domain/OS in 1988 when Unix environments were added to the operating system. It is one of the early distributed operating systems. Hewlett-Packard supported the operating system for a short time after they purchased Apollo, but they later ended the product line in favor of HP-UX. HP ended final support for Domain/OS on January 1, 2001.