Interactivity refers to the ability of users to interact with a computer system. An Operating system does the following activities related to interactivity −. Provides the user an interface to interact with the system. Manages input devices to take inputs from the user. For example, keyboard. Manages output devices to show outputs to the user. Task View. When an OS processes tasks in a priority order, it is known as. preemptive multitasking. An example of an open source OS is. Linux. Which of the following is not considered an accessibility utility? System Restore. Which of the following devices would use a real-time operating system? Roomba Vacuum. 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. Advantage: This operating system occupies less space in memory. The Palm OS for Palm handheld computers is good example of modern single user, single task operating system. Single-user, multi tasking - This is very popular operating system; most people use this operating system on their desktop and laptop today. Microsoft's Windows and Apple's Mac OS are both example of single user, multi tasking Single-user, multitasking - This is the type of operating system most people use on their desktop and laptop computers today. Microsoft's Windows and Apple's macOS platforms are both examples of operating systems that lets a single user have several applications in operation at the same time.
An operating system is the program that controls all the other parts of a computer system, both the hardware and the software. It allocates the computer's resources and schedules tasks. It allows you to make use of the facilities provided by the system. Every computer requires an operating system. UNIX is a multi-user, multi-tasking operating
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    • single user multi task operating system example