Also notable as an early anecdote on the development of user interface/experience. It's funny how complicated simplifying the user experience can be from the engineering perspective.
Another interesting tidbit was Microsoft's habit of storing bytecode (to be interpreted) making the developer's life much, much harder. Hmmm, sounds like curiously similar to more recent news...
I don't think it's really fair to call this "multi-tasking". Curtainly a predecessor, though. A more accurate description would be "task switching", whereby each application had reserved memory, but only one application ran at a time. At the user's request, another application would take over and run. There was no CPU time-slicing. That came later, when Apple introduced the Multifinder extension in System 7.
