1. i Operating Systems
(iOS)
-By
G.Goutham Kumar
Reddy

2. OUTLINE
 Introduction
 History
 Working Process
 Technologies
 Advantages
 Disadvantages
 Conclusion

3. INTRODUCTION
 iOS (formerly iPhone OS) is a mobile operating
system originally developed for the iPhone later
extended to ipad and ipod.
 iOS is derived from Mac OS X, with which it
shares the Darwinfoundation, and is therefore
a Unix-like operating system.
 Apple licenses the trademark for "iOS" from Cisco
Systems (who own IOS).

4. HISTORY
 The operating system was unveiled with the
iPhone at the Macworld Conference & Expo,
January 9, 2007, and released in June of that
year.
 On March 6, 2008, Apple released the first beta,
along with a new name for the operating system:
"iPhone OS”.
 In June 2010, Apple rebranded iPhone OS as
"iOS".
 Apple licensed the "IOS" trademark from Cisco.

5. Version History
 iOS 1.x: initial OS release
 iOS 2.x: second major OS release
 iOS 3.x: third major OS release
 iOS 4.x: fourth major OS release
 iOS 5.x: fifth major OS release

6. WORKING PROCESS
 iOS ARCHITECHTURE

7.  In iOS, there are four abstraction layers: the Core
OS layer, the Core Services layer, the Media
layer, and the Cocoa Touch layer.
 The current version of the operating system(iOS
5.0.1) uses roughly 770 megabytes of the device's
storage, varying for each model.

8. Cocoa Touch Layer
 The Cocoa Touch layer contains the key
frameworks for building iOS applications.
 This layer defines the basic application
infrastructure and support for key technologies
such as multitasking, touch-based input, push
notifications, and many high-level system
services.

9. Media Layer
 The Media layer contains the graphics, audio,
and video technologies geared towards creating
the best multimedia experience available on a
mobile device.

10. Core Services Layer
 The Core Services layer contains the
fundamental system services that all applications
use.
 iCloud Storage

11. Core OS Layer
 The Core OS layer contains the low-level features
that most other technologies are built upon.

12. TECHNOLOGIES
 iPhone
 iPad
 iPod
 Apple Tv

13. iPhone
 At the Macworld Conference & Expo in January
2007, Steve Jobs revealed the long
anticipated iPhone, a convergence of an Internet-
enabled smartphone and iPod.
 . The iPhone features a 3.5-inch (89 mm) touch
screen display, 4, 8, or 16 GB of
memory, Bluetooth, and Wi-Fi (both "b" and
"g"). The iPhone first became available on June
29, 2007 for $499 (4 GB) and $599 (8 GB) with
an AT&T contract.
 On October 4, 2011, Apple unveiled the iPhone
4S.

14. iPad
 On January 27, 2010, Apple introduced their
much-anticipated media tablet, the iPad running a
modified version of iOS.
 Offers multi-touch interaction with multimedia
formats including
newspapers, magazines, ebooks, textbooks, phot
os, movies, TV shows videos, music, word
processing documents, spreadsheets, video
games, and most existing iPhone apps.
 On March 2, 2011, Apple introduced an updated
iPad model which had a faster processor and two
cameras on the front and back respectively.

15. iPod
 On October 23, 2001, Apple introduced
the iPod digital music player.
 The iPod is the market leader in portable music
players by a significant margin, with more than
220 million units shipped as of September 2009.
 iPod Shuffle
 iPod Nano
 iPod Classic

16. Apple Tv
 Apple TV is a digital media receiver developed
and sold by Apple.
 Apple offered a preview of the device in
September 2006 and began shipping it the
following March.It initially shipped with a
40 GB hard disk; a 160 GB version was
introduced two months later and the earlier model
was ultimately discontinued.
 Apple TV allows consumers to use an HDTV set
to view photos, play music and watch video that
originates from limited Internet services or a local
network.

17. ADVANTAGES
 Connectivity
 Reliability
 Scalability
 Security

18. DISADVANTAGES
 Semi-thread message
 There is no real features upgrade for iPod
 Unlock way is complicated
 Mail does not support the attachment directly

19. CONCLUSION
 Thus, iOS is Apple's mobile operating system
developed originally for the iPhone later extended
to iPad and iPod as well.
 Apple licenses the trademark for "iOS" from Cisco
Systems (who own IOS), the same company with
which Apple had earlier settled a dispute over the
"iPhone" trademark.
 iOS 4 is the first version of the OS to be a free
upgrade on the iPod touch; Apple had charged
$9.99 for earlier upgrades.