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Operating system
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What is an Operating System as Fast As Possible
5:43
Types of Operating Systems as Fast As Possible
13:36
Operating Systems: Crash Course Computer Science #18
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Computer Basics: Understanding Operating Systems
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How Do Operating Systems Work?
An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs.
Single-tasking and multi-tasking
Single- and multi-user
Distributed
Templated
Embedded
Real-time
Library
History
Mainframes
Microcomputers
Unix and Unix-like operating systems
BSD and its descendants
macOS
Linux
Microsoft Windows
Other
Kernel
Program execution
Interrupts
Modes
Memory management
Virtual memory
Multitasking
Disk access and file systems
Device drivers
Networking
Security
User interface
Graphical user interfaces
Real-time operating systems
Operating system development as a hobby
Diversity of operating systems and portability