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Questions and Answers
What is the primary role of an operating system?
What is the primary role of an operating system?
Which of the following is NOT a goal of an operating system?
Which of the following is NOT a goal of an operating system?
What does the term 'kernel' refer to in the context of an operating system?
What does the term 'kernel' refer to in the context of an operating system?
Which statement best describes an operating system's function as a resource allocator?
Which statement best describes an operating system's function as a resource allocator?
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In which of the following scenarios would an operating system be essential?
In which of the following scenarios would an operating system be essential?
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Study Notes
Operating System Design
- Operating system (OS) is a program that acts as an interface between users and computer hardware
- OS manages all resources efficiently
- OS executes user programs and simplifies problem-solving
- OS makes the computer user-friendly
OS Goals
- Manage computer resources effectively
- Execute user programs smoothly
- Resolve user issues easily
- Facilitate convenient computer use
OS Definitions
- No single universally accepted definition
- OS is a resource allocator managing all computer resources, deciding how to best use them
- OS is a control program, controlling program execution and preventing errors
- Kernel is the main program running continuously on a computer; other programs are either system programs or application programs
Common Operating Systems
- Desktops: Windows, macOS, Fedora, Debian, Linux Mint
- Mobiles: Android, Bada, iOS, Blackberry OS, MeeGo, Palm OS, Symbian, Windows Mobile
- Embedded Systems: VxWorks, FreeRTOS, Palm OS, Windows Embedded, Linux, RTLinux, MS-DOS
- Internet of Things (IoT) Devices: Zephyr, Micrium, RIOT, TinyOS, TIZEN, ARM mbed, Contiki, Nucleus, mynewt, Windows IoT, Android Things, Mongoose OS, snappy
When OS is Necessary
- Multiple applications needing management and proper functionality
- Multiple tasks and users to be handled in one system
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Description
Explore the fundamental concepts of operating system design, including definitions, functions, and goals. Understand how operating systems manage computer resources and provide user interfaces. This quiz covers various common operating systems across desktops and mobile devices.
