TSS (operating system)
| Developer | IBM |
|---|---|
| Working state | Discontinued |
| Source model | Source available |
| Initial release | 1967 |
| Available in | English |
| Platforms | System/360 Model 67, System/370 models with DAT |
| Default user interface | Command-line interface |
| License | TSS/360: free TSS/370: Proprietary |
| History of IBM mainframe operating systems |
|---|
The IBM Time Sharing System TSS/360 is a discontinued early time-sharing operating system designed exclusively for a special model of the System/360 line of mainframes, the Model 67. Made available on a trial basis to a limited set of customers in 1967, it was never officially released as a supported product by IBM. TSS pioneered a number of novel features, some of which later appeared in more popular systems such as MVS. TSS was migrated to System/370 and 303x systems, but despite its many advances and novel capabilities, TSS failed to meet expectations and was eventually canceled. The Resident Supervisor of TSS/370 was used as the basis for a port of UNIX to the IBM mainframe. TSS/360 also inspired the development of the TSS/8 operating system.