Which of the following operating system does not implement the multitasking truly? A. Windows 98 B. Windows NT C. Windows XP D. MS DOS

The correct answer is D. MS DOS.

MS-DOS (Microsoft Disk Operating System) is a single-tasking operating system, which means that it can only run one program at a time. This is in contrast to multitasking operating systems, which can run multiple programs at the same time.

Windows 98, Windows NT, and Windows XP are all multitasking operating systems. They can run multiple programs at the same time by using a technique called time slicing. Time slicing divides the available processing time into small slices, and each program is given

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