| GM Multiple Console Time Sharing System (MCTS) | |
| Developer: | General Motors Research Laboratories |
| Family: | Multics |
| Released: | 1970s |
| Language: | English |
| Kernel Type: | N/A |
| Ui: | Command-line interface |
| License: | none |
| Working State: | Historic |
| Supported Platforms: | Control Data Corporation STAR-100 |
The Multiple Console Time Sharing System (MCTS) was an operating system developed by General Motors Research Laboratories in the 1970s for the Control Data Corporation STAR-100 supercomputer. MCTS was built to support GM's computer-aided design (CAD) applications.[1]
MCTS was designed starting in 1968. It was written in a high-level systems programming language "Malus", a dialect of PL/I. A superset of Malus called Apple became the primary application language.[2]
MCTS was based on Multics.[3] All access to data was thru the virtual memory system. Only the system paging support module was concerned about the physical location of the data.