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Questions and Answers
What is the main function of an operating system?
What is the main function of an operating system?
- Create computer programs
- Design computer hardware
- Manage computer hardware and software resources (correct)
- Control the internet connection
How does the operating system interact with computer hardware?
How does the operating system interact with computer hardware?
- Manages hardware functions without program intervention
- Directly executes application code without any interaction
- Acts as an intermediary between programs and the computer hardware (correct)
- Has no role in hardware interaction
What is the role of time-sharing operating systems?
What is the role of time-sharing operating systems?
- Schedule tasks for efficient use of the system (correct)
- Control the display resolution
- Manage printer functions
- Develop accounting software
Where are operating systems found?
Where are operating systems found?
Which operating system holds the dominant market share in the personal computer market as of September 2023?
Which operating system holds the dominant market share in the personal computer market as of September 2023?
What is the role of an operating system?
What is the role of an operating system?
How do time-sharing operating systems schedule tasks?
How do time-sharing operating systems schedule tasks?
What devices contain operating systems?
What devices contain operating systems?
What is the dominant market share of Microsoft Windows in the personal computer market as of September 2023?
What is the dominant market share of Microsoft Windows in the personal computer market as of September 2023?
What is the primary function of an operating system in interacting with computer hardware?
What is the primary function of an operating system in interacting with computer hardware?
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Study Notes
Operating System (OS)
- Manages computer hardware and software resources, providing common services for computer programs.
Functions of an OS
- Schedules tasks for efficient use of the system.
- Includes accounting software for cost allocation of system resources.
Interaction with Hardware
- Acts as an intermediary between programs and computer hardware.
- Application code is usually executed directly by the hardware.
- Frequently makes system calls to an OS function or is interrupted by it.
Presence of OS
- Found on many devices that contain a computer, including:
- Cellular phones
- Video game consoles
- Web servers
- Supercomputers
Market Share in Personal Computer Market (as of September 2023)
- Microsoft Windows: 68%
- macOS by Apple Inc.: 20%
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