FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -There are some operating system examples like DOS, Windows 3x, Windows 95, 97, 98. Also, in mobile phones, Symbian OS is single-user OS. These systems are also known are single application OS as one application is concentrated at a time. These systems require fewer resources and can do processing in a queue.

Detailed explanation-2: -Single-User/Single-Tasking OS An operating system that allows a single user to perform only one task at a time is called a Single-User Single-Tasking Operating System. Functions like printing a document, downloading images, etc., can be performed only one at a time. Examples include MS-DOS, Palm OS, etc.

Detailed explanation-3: -The correct answer is MS-DOS. A Single-User Single-Tasking Operating System is an operating system that allows a single user to complete only one task at a time. Printing a paper, downloading photographs, and other tasks can only be done one at a time.

Detailed explanation-4: -Multi processing system’s working – Now in a single processor system, firstly one process will execute, then the other, then the other and so on. But with multiprocessing, each process can be assigned to a different processor for its execution.

Detailed explanation-5: -A multitasking operating system (also called multiprocessing operating system) supports two or more active processes simultaneously.