On Tue, 25 Oct 2011 22:32:44 +0100, Tim Streater
wrote:

In article m,
"dennis@home" wrote:

"Steve Firth" wrote in message

...
"dennis@home" wrote:
[snip]
If only Apple had allowed the clones to build Macs back in the 80s

yes we would still be stuck with an OS that didn't even do virtual
memory.
Windows did that for years before macOS.

No that's bull****. It would have been accurate had you said that
Windows
had protected memory before MacOS.
Well that's not surprising.. it wasn't until the 68030 series came out
that there was a working MMU to run the protection and coincidently
support paging and VM.
That is true for Motorola CPUs as used by Apple.

Mmmm no (again). The 030 was the first in the 68k line to have an
*on-board* MMU. You could perfectly well use a 68020 and use the 68851
MMU as a co-processor with it.


Didn't the Apple Lisa have virtual memory?

--
Rod