OZONE
An object-oriented OS primarily based on VMS with the use of the GNU toolchain, and Unix-style pipes (also using record-oriented pipes, a VMS feature called a "mailbox").A short feature list:
- Logical names
- Versioning on filenames
- Access control lists
- Nice entrypoint names for everything
- Device names that you can see
- Event flags and AST's
- Asynchronous I/O