OS 2200
| OS 2200 | |
|---|---|
| Developer | Unisys |
| OS family | OS 2200 |
| Working state | Current |
| Source model | Closed source. Most source is available to clients under license. |
| Initial release | 1967 as Exec 8 |
| Latest release | 20.0 (EXEC 50R1) / March 30, 2023 |
| Marketing target | Enterprise / Mainframes |
| Update method | Exec and some other components: Line number based packaged changes. Most components: Interim corrections (ICs) |
| Package manager | PRIMUS (internal), COMUS and SOLAR (client and internal) |
| Supported platforms | UNIVAC 1100/2200 series; Unisys ClearPath Dorado systems; ClearPath Software Series 2.1 and 3.0 (over VMware) |
| Kernel type | Monolithic kernel |
| Default user interface | Command-line interface |
| License | Proprietary. Term license or pay for use (metered) licenses |
| Official website | OS 2200 site |
OS 2200 is the operating system for the Unisys ClearPath Dorado family of mainframe systems. The operating system kernel of OS 2200 is a lineal descendant of Exec 8 for the UNIVAC 1108 and was previously known as OS 1100. Documentation and other information on current and past Unisys systems can be found on the Unisys public support website.
See Unisys 2200 Series system architecture for a description of the machine architecture and its relationship to the OS 2200 operating system. Unisys stopped producing ClearPath Dorado hardware in the early 2010s, and the operating system is now run under emulation.