Editing Multics (section)

===Other operating systems===
The [[Prime Computer]] operating system, [[PRIMOS]], was referred to as "Multics in a shoebox" by [[William Poduska]], a founder of the company. Poduska later moved on to found [[Apollo Computer]], whose AEGIS and later [[Domain/OS]] operating systems, sometimes called "Multics in a matchbox", extends the Multics design to a networked graphics workstation environment.

The [[Stratus VOS]] operating system of Stratus Computer (now [[Stratus Technologies]]) is very strongly influenced by Multics, and both its external user interface and internal structure bear many close resemblances to the older project. The high-reliability, availability, and security features of Multics are extended in Stratus VOS to support a new line of [[fault tolerant]] computer systems supporting secure, reliable [[transaction processing]]. Stratus VOS is the most directly related descendant of Multics still in active development and production usage today.

[[General Motors]]' [[Multiple Console Time Sharing System]] (MCTS) for the [[Control Data Corporation]] [[CDC STAR-100|STAR-100]] computer was based on Multics.

The protection architecture of Multics, restricting the ability of code at one level of the system to access resources at another, was adopted as the basis for the security features of [[International Computers Limited|ICL]]'s [[ICL VME|VME]] operating system.

The [[Edinburgh Multiple Access System]] (EMAS) draws particularly on the one-level store concept used by Multics, providing access to files only by mapping them into memory. All memory space is associated with a segment.
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