Conversational Monitor System
The Conversational Monitor System (CMS, originally Cambridge Monitor System) is a simple interactive single-user operating system. CMS was originally developed as part of IBM's CP/CMS operating system, which went into production use in 1967. CMS is part of IBM's VM family, which runs on IBM mainframe computers. VM was first announced in 1972, and is still in use today as z/VM.
| Developer | IBM |
|---|---|
| Initial release | 1967 |
| Platforms | IBM CP-40 |
| Influenced by | Compatible Time-Sharing System |
| History of IBM mainframe operating systems |
|---|
CMS runs as a "guest" operating system in a private virtual machine created by the VM control program. The control program plus CMS together create a multi-user time-sharing operating system.
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