System Support Program
| Main Menu of SSP 7.5, shown inside a TN5250 client | |
| Developer | IBM | 
|---|---|
| Working state | Discontinued | 
| Initial release | 1977 | 
| Platforms | System/34 and System/36 minicomputer | 
| Default user interface | Command-line interface | 
| License | Proprietary | 
| Preceded by | System/32 System Control Program (SCP) | 
| Succeeded by | OS/400 | 
System Support Program (SSP) is the operating system of the IBM System/34 and System/36 minicomputers. SSP was released in 1977.