| Developer | Pyramid Technology |
|---|---|
| OS family | Unix System V |
| Working state | Historical |
| Source model | Closed source |
| Initial release | 1989 |
| Marketing target | Network Server |
| Platforms | MIPS architecture |
| Kernel type | Monolithic kernel |
| License | Proprietary |
DC/OSx (DataCenter/OSx) is a discontinued Unix operating system for MIPS based systems developed by Pyramid Technology in 1989.[1] It ran on its Nile series of SMP machines and was a port of AT&T System V Release 4 (SVR4). In 1995, Pyramid Technology was acquired by Siemens Nixdorf Informationssysteme (SNI), and DC/OSx was superseded by the SINIX operating system.