True preemptive multitasking was not available in early versions of Windows. Instead, the Windows designers implemented "cooperative multitasking," in which each program was expected to relinquish CPU...

 True preemptive multitasking was not available in early versions of Windows. Instead, the Windows designers implemented "cooperative multitasking," in which each program was expected to relinquish CPU control at regular intervals so that the Windows dispatcher could grant execution time to another waiting program. Describe the drawbacks of this approach.