| Company / developer | Xerox PARC |
|---|---|
| Programmed in | Mesa |
| Working state | Historic |
| Initial release | 1981 |
| Available language(s) | English |
| Supported platforms | Xerox Star workstations |
| Default user interface | Graphical user interface |
Pilot was a single-user, multitasking operating system designed by Xerox PARC in early 1977. Pilot was written in the Mesa programming language, totalling about 24,000 lines of code.[1]
Pilot was designed as a single user system in a highly networked environment of other Pilot systems, with interfaces designed for inter-process communication (IPC) across the network via the Pilot stream interface. Pilot combined virtual memory and file storage into one subsystem, and used the manager/kernel architecture for managing the system and its resources. Its designers considered a non-preemptive multitasking model, but later chose a preemptive system based on monitors.[1]
Pilot was used as the operating system for the Xerox Star workstation.
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