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- In article <4c6p5j$10j@serpens.rhein.de> mlelstv@serpens.rhein.de (Michael van Elst) writes:
-
- > ...
-
- > >They could have easily made provisions for memory protection in the Amiga's OS
- > >if they had wanted to. Instead they deliberately chose not to. The Amiga's high
- > >performance and low memory usage were a direct result of this.
- >
- > Rubbish.
- ^^^^^^^
- Right.
-
- >
- > The decision to use an 68000 has something to do with _cost_. At that
- > time hardly anyone could afford 68020s or MMU chips. And with 68000
- > in mind you do not have to ask yourself wether you implement memory
- > protection or not as you simply cannot implement it.
-
- Actually, with a 68000 and the proper external logic you can
- implement memory protection, but the external logic would add to the
- cost. As you said, it was a cost, not an OS, decision.
-
- To put this in perspective, at the time of the A1000 design,
- 68020 based systems from HP started at around 15,000 $US.
-
- -Chris
-
- --
- -----------------------------------------------------------------------------
- | Christopher D. Judd |
- | Rensselaer Polytechnic Inst. juddc@rpi.edu NLO & spectroscopy: |
- | Dept. of Chemistry 518 276-8982 Fun with photons |
- | Troy, NY 12180-3590 |
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-