Burroughs MCP
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"Master Control Program" redirects here. For the fictional villain from the film "Tron", see Master Control Program (Tron).
The MCP (Master Control Program) is the operating system of the Burroughs B5000/B5500/B5700 and the B6500 and successors, including the Unisys Clearpath/MCP systems.
Quick Facts Developer, Written in ...
Developer | Burroughs / Unisys |
---|---|
Written in | ESPOL, NEWP |
Working state | Current |
Source model | Source available |
Initial release | 1961; 63 years ago (1961) |
Latest release | 20.0[1] / May 2021 |
Platforms | Burroughs large systems including the Unisys Clearpath/MCP |
Default user interface | Text user interface |
License | Proprietary |
Official website | Unisys ClearPath |
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MCP was originally written in 1961 in ESPOL (Executive Systems Problem Oriented Language). In the 1970s, MCP was converted to NEWP which was a better structured, more robust, and more secure form of ESPOL.
The MCP was a leader in many areas, including: the first operating system to manage multiple processors, the first commercial implementation of virtual memory, and the first OS written exclusively in a high-level language.