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- From: mwm@contessa.palo-alto.ca.us (Mike Meyer)
- Newsgroups: comp.sys.amiga.misc
- Subject: Re: Random musings
- Message-ID: <mwm.2nhx@contessa.palo-alto.ca.us>
- Date: 15 Nov 92 19:01:56 GMT
- References: <Qf0xjYm00WDNQPCLY9@andrew.cmu.edu> <S37732V.92Nov14112613@lk-hp-16.hut.fi> <S37732V.92Nov15115452@lk-hp-22.hut.fi>
- Organization: Missionaria Phonibalonica
- Lines: 15
- X-NewsSoftware: Amiga Yarn 3.4, 1992/08/12 15:49:52
-
- In <S37732V.92Nov15115452@lk-hp-22.hut.fi>, s37732v@snakemail.hut.fi (Markus Juhani Aalto) wrote:
- > In article <mwm.2n3h@contessa.palo-alto.ca.us> mwm@contessa.palo-alto.ca.us (Mike Meyer) writes:
- > 3) Even with having to put the OS in RAM, UNIX used to run quite
- > nicely in 256K. Even as a multi-user system. But that was back when it
- > only had one file system, and no networking, and no windowing system,
- > and one person running Emacs could kill the system. Those sytsems
- > didn't have demand paging, but it did have memory protection.
- >
- > They had a memory protection with 68000? Hmmm.?
-
- Yes, they did. They got it the same way you get it with a 68020 - by
- adding an external mmu. The 68451 was available from Motorola, but Sun
- systems used a patented external MMU.
-
- <mike
-