Re: preemptive-multitask (Score 1)

AFAIK preemptive-multitasking works that way the OS directs the task-switchig itself, by interrupting them after a certain time (in microsecs) of running, redirecting processing to other one. So usually no one can hold processing at itself for a prolonged time, but it's well spreaded. Additionally, on Amiga the user-input has (almost) the highest priority.

With cooperative-multitasking, tasks are giving the processing over to each other, usually after some routines are finished. So it frequently happen that some task hold the processing for longer, even several seconds! (While the user can just wait...)