5 Questions
What is the main function of an operating system (OS)?
The main function of an operating system is to manage computer hardware and software resources, and provide common services for computer programs.
What is the role of time-sharing operating systems?
Time-sharing operating systems schedule tasks for efficient use of the system and may include accounting software for cost allocation of processor time, mass storage, peripherals, and other resources.
How does the operating system act as an intermediary between programs and computer hardware?
The operating system acts as an intermediary for hardware functions such as input and output and memory allocation, although the application code is usually executed directly by the hardware and frequently makes system calls to an OS function or is interrupted by it.
Where are operating systems found in terms of devices?
Operating systems are found on many devices that contain a computer – from cellular phones and video game consoles to web servers and supercomputers.
Which operating system holds the dominant market share in the personal computer market as of September 2023?
As of September 2023, Microsoft Windows holds a dominant market share of around 68% in the personal computer market.
Study Notes
Operating System Functions
- The main function of an operating system (OS) is to act as an intermediary between computer hardware and user-level applications.
Time-Sharing Operating Systems
- Time-sharing operating systems allocate system resources to multiple users or processes, maximizing system efficiency and responsiveness.
Operating System as Intermediary
- The operating system acts as an intermediary between programs and computer hardware, managing hardware resources and providing a platform for running application software.
Availability of Operating Systems
- Operating systems are found in various devices, including computers, laptops, mobile devices, tablets, and gaming consoles.
Dominant Market Share in Personal Computer Market
- As of September 2023, the Windows operating system holds the dominant market share in the personal computer market.
Test your knowledge of operating systems with this quiz! Explore topics such as task scheduling, resource management, and common services provided by operating systems. See how much you know about this essential system software.
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