It is commonly cited as an example of the second-system effect, compared to it's predecessor, (*) CTSS.
Due to this operating system being written in PL/1, or Programming Language One, it became one of the first operating systems to be written in a high-level language. This operating system unified 3 its virtual address space with the file system such that each segment in the virtual address space was addressable by a file; that scheme allowed all information it controlled to be addressed directly by the processor and made it possible to control access to all information in the system. It was created 6 for the GE-645 mainframe. A Robert Daley and Jack Dennis paper that is a classic in operating system design is titled Virtual Memory, Processes, and Sharing in [this operating system]. It is commonly cited as an example of the second-system effect, compared to it's predecessor, (*) CTSS. This enormously 9 influential time-sharing operating system was created at MIT. For 10 points, name this operating system thatinfluenced the direction of Unix, whose name is a pun on it.
Due to this operating system being written in PL/1, or Programming Language One, it became one of the first operating systems to be written in a high-level language.
MULTICS [or: Multiplexed Information and Computing Service]