doug at cs.dartmouth.edu
Tue Sep 12 21:18:52 AEST 2017
> On the programming side, there wasn't either the memory capacity or
> processing power to implement a modern disk file system. One of the
> first computers I worked with was a System/360 model 25 running
> DOS/360. The machine had 48K of core memory, 12K of which was for the
> OS, leaving 36K for programs. No virtual memory.
Unix was a counterexample. Recall that v1 worked on a 24K
machine, 16K of which was OS and 8K user. And it had a modern
file system. Programming was so much easier that it lured
people (e.g. me) away from big mainframe computers.
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