On Fri, 06 Jun 2008 13:27:05 +0100, Invisible wrote:

> (Demonstrated by, e.g., writing a short program that prints out numbers,
> and then switching to another window and seeing the first program stop
> printing until you switch back.)

This was not the behaviour in Win3x.  Win3x used nonpreemptive 
multitasking, but it still was more than task switching (which is what 
you describe).

Desqview also provided multitasking capabilities on top of DOS.

Jim

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