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OS
OS is the short form of Operating System. Operating System is an inevitable part of the base of a computing system of a device. It is a collection of software that manages computer hardware resources and provides common services for performing tasks. Al application programmes need an Operating System. Android, Apple iOS, Symbian, BlackBerry OS, Windows Phone OS etc are some examples of Operating Systems used in mobile phones and tablets.
Check the meaning of technical terms related to Mobile Phones: