From: Ravi Ranjan (1309010119)

To: Shashi Bhusan Vishwakarma

What Is Ios?iOS is a mobile operating system developed and distributed by Apple Inc. It was originally released in 2007 for the iPhone, iPod Touch, and Apple TV. iOS is derived from OS X, with which it shares the Darwin foundation. iOS is Apple's mobile version of the OS X operating system used in Apple computers. iOS apps are mainly designed in two languages namely:•Objective C•Swift

APPLE’S FOUNDERThe Apple was founded in April 1st 1976 and released with first APPLE(1) computer.

Steve JobsSteve WozniakRonald Wayne

History Of iOS

Ios Technology LayerIn iOS, there are four abstraction layers:

Implementation of graphical event-driven application in ios with the framework is performed in the Cocoa touch layer.

Media Layer allows you to create the best multimedia experience available on the mobile device with framework.

Core Service Layer contains the fundamental interfaces for ios, for accessing files, network sockets and so on.

Core OS layer manages the Virtual Memory, thread, the file system, the network, interprocess communication with the framework in the core os layer.