[Info-vax] OT: obscure PDP11 OSes (even more dinosaury)

[Bob Koehler]

In article <mlouja$7aj$2 at dont-email.me>, Simon Clubley <clubley at remove_me.eisner.decus.org-Earth.UFP> writes:
> 
> The TKB overlay functionality (and it's associated documentation) is
> something I have _very_ gladly left in the past and have almost
> successfully purged from my memory. :-)

   Before I worked with TKB overlays, I worked with IBM OS 360 overlays.
   Same concept, more difficult implementation.

   Upgrading from an 11/34 to an 11/44 allowed us to move from disk
   redident to memory resident overlays.  Just a small detail in the
   overlay information, but such an improvement in performance.