TENEX (operating system)
| Developer | BBN | 
|---|---|
| Written in | Assembly language | 
| Working state | Historic | 
| Initial release | 1969 | 
| Marketing target | Mainframe computers | 
| Platforms | PDP-10 | 
| Influenced by | TOPS-10 | 
| Default user interface | Command-line interface | 
| License | Proprietary | 
| Succeeded by | TOPS-20 | 
TENEX is an operating system developed in 1969 by BBN for the PDP-10, which later formed the basis for Digital Equipment Corporation's TOPS-20 operating system.