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Answer:
What is an operating system?
An Operating System (OS) is a software that acts as an interface between computer hardware components and the user. Every computer system must have at least one operating system to run other programs. Applications like Browsers, MS Office, Notepad Games, etc., need some environment to run and perform its tasks.
Types of Operating System (OS)
Following are the popular types of Operating System:
Batch Operating System
Multitasking/Time Sharing OS
Multiprocessing OS
Real Time OS
Distributed OS
Network OS
Mobile OS
Here is a list important features of OS:
Protected and supervisor mode
Allows disk access and file systems Device drivers Networking Security
Program Execution
Memory management Virtual Memory Multitasking
Handling I/O operations
Manipulation of the file system
Error Detection and handling
Resource allocation
Information and Resource Protection
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