2.A macro instruction that causes the control program to create a new task and i ndicates the entry point in the program to be given control when the new task becomes active.
5.Application designers: create UIs that provide efficient experiences. Task completion is important and time may be a critical factor. Consumers must be able to complete tasks quickly and efficiently.
6.Functions allow a programmer to create modular pieces of code that performs a defined task and then returns to the area of code from which the function was "called".