[Simh] Simh Digest, Vol 169, Issue 55

[dave porter]

"VM is a mechanism to automatically manage
overlays" is an over-simplification.

I think Atlas gets to provide the prime motivation
here, and that was to transparently manage
the migration of pages between core (16KW)
and drum. This is surely automatic overlay
management.

http://www.chilton-computing.org.uk/acl/pdfs/atlas-1-level.pdf