Windows (multitasking ), .. "" . . , . , - .
[2, 5]. (cooperative multitasking) . . , . . , .. - ( .). ( .). Windows 3.1. Windows 95 16- , , Windows 3.1, .
(preemptive multitasking) . , . , . Windows 95 32- , , MS DOS.
(multithreading) , () , . . , , , ..