Aucbvax.2022
fa.works
utzoo!duke!decvax!ucbvax!Deutsch@PARC-MAXC
Wed Jul  1 04:02:10 1981
Re: Multiple Levels Of State
Whoever mentioned the MIT Lisp machine solution hit the nail on the head: if
(1) there is no notion of "nesting" of suspensions, but rather simply á pool of
tasks in various stages of completion which the user ãan switch between at will,
and (2) every partially complåted task is represeîted by a VISIBLE OBJECT on
the screen, then there is no issue about forgetting partially completed tasks,
being forced to complete them in the order they were started, etc., etc.  I believe
(at leasô I hope) the Star works this way, since all the experimental
multi-window systems at PARC do.