Microsoft's first operating system was MS-DOS 1.1. MS-DOS was based on the operating system 86-DOS which was purchased by Microsoft. Microsoft licensed MS-DOS 1.1 to IBM who resold it as PC-DOS 1.0.
I do believe Windows NT released in 1993 was the first multitasking O.S.
first true multitasking operating system
Nope it's not, a multiuser OS can be used by many people, one at at time. Lets say you have one computer for the whole family to share, you can use a different login for them so they can only log into their part only after you are done with it.With a Multitasking OS you can do more then one thing at a time, like, watch a movie on your device and play a game at the same time.Here's another analogy, rub your belly and at the same time pat your head, that's multitasking.
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The first widely used operating system installed in personal computers was MS-DOS (Microsoft Disk Operating System). It was developed by Microsoft in 1981 and was the primary operating system for IBM-compatible personal computers until it was eventually replaced by Windows. MS-DOS was a text-based operating system and was primarily used for running command-line programs.
The first widely used plastic was bakelite. Invented in the early twentieth century it became very widely used in the twenties and thirties, when it was almost the only plastic around.
Both. Windows 3.1 and earlier used cooperative multitasking. Windows 95 and later use preemptive multitasking.
Identify the reasons that multiuser systems are used in business
in 1956
Intel product
Widely after the second world war.
Multiusers is when more than one user can do something at one time
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