5 Nov
2010
5 Nov
'10
9:09 p.m.
On 5 Nov 2010 at 20:28, Brent Hilpert wrote:
I was aware of many aspects of the B5000 series, from
AotHoC articles,
but not with the VM implementation technique. The article mentions the
use of a descriptors to indicate memory segment availability, but
doesn't describe much of the VM beyond that. It doesn't make it clear
when VM was actually implemented, I had always been led to believe the
ATLAS was the first VM machine, in the early 60's.
For a more personal view on the subject of Virtual Memory, have a
read of Richard Waychoff's narrative. He has a completely different
view of what he considers to be virtual memory and ascribes the first
implementation to the B205--a magnetic drum machine:
http://web.me.com/ianjoyner/Files/Waychoff.pdf
Outside the B5000 topic, it is amusing to read the
writer's advice in
1982 of "Machines worth keeping an eye on are the iAPX-432 and the IBM
System/38".
I've never seen a S/38 in person. It would be an interesting system
for a collector to have.
--Chuck