This document provides an overview of Android, including its history and development by Google. It describes Android as an open-source, Linux-based operating system designed for touchscreen devices. The document also outlines the Open Handset Alliance collaboration, key features of Android like app multitasking and media support, versions of Android from initial to current releases, and compares Android to other mobile operating systems. It concludes that Android has become the most widely used mobile OS in the world.

2. Presentation About
• What is ANDROID?
• Open Handset Alliance (OHA)
• Features of Android
• Comparison with other OS
• Versions of Android
• Conclusion & Future scope

3. What is Android
• Android is a mobile operating system developed by
Google, based on the Linux kernel and designed
primarily for touch screen mobile devices such as
smart phones and tablets.
• It was developed in Palo Alto, California.
• And it was developed by Andy Rubin, Rich miner,
Nick sears, Chris white in 2003.
• It was purchased by Google in august 2005 for
50million$.

4. Open Handset Alliance (OHA)
• Its consortium of several companies.
• This group of companies are allowed to use source
code of android & develop applications.

6. • Dalvik is the process virtual machine in Google
android os. It is the software that runs the apps on
android devices.
• It is an integral part of mobile devices.

7. Features of Android
• Android can run multiple apps at the same time.
• It also supports graphics 2D, 3D & VGA.
• Media supports are :jpeg, png, gif, Mp3, Mp4.
• Connectivity: Bluetooth, wifi, CDMA, GSM.
• Now it supports 3g, 4g networks for communication.
• It comes with good display & touchpads.
• Android have its own browser.

8. Comparison with other OS
• There are several mobile os which is used.
• Symbian, ios, windows this are one of the most used
mobile OS.

10. Versions of AndroidANDROID 8.0 “O”
Android 7.0 Nougat
Android 6.0 Marshmallow
Android 5.0 Lollipop
Android 4.4 KitKat
Android 4.1 jellybean
Android 4.0 icecream sandwich
Android 3.0 Honeycomb
Android 2.3 Gingerbread
Android 2.2 Froyo
Android 2.0 Eclair
Android 1.6 Donut
ANDROID1.5
Cupcake

11. Conclusion & future Scope
• Android is now stepping up in next level of mobile
internet.
• Many companies are now working just on developing
android based application.
• Android have become widely used os in the world.