Android has only been around for seven years, but in computer world, this is a huge amount of time. Android has totally revolutionized the cell phone. In following presentation, I'm showing you the complete history of Android OS from 1.0 to lollipop.

2. Android 1.0 Astro
SDK Released: Feb, 2008
Notable Updates
GPS and Bluetooth
Multitasking
Tight integration with Google
services
Apps: Amazon MP3 Store; YouTube
Android Market (about 35 apps at
launch)

3. Android 1.5 CupCake
SDK Released: April, 2009
Notable Updates
Improvement of the Camera
Increase in GPS Position Speed
Virtual Keyboard
Automatic loading of videos on
YouTube and Picasa

4. Android 1.6 Donut
SDK Released: Sept, 2009
Notable Updates
The box for quick search and voice
search
Indicator for battery Usage
Grouping of the camera
Gallery apps and shooting mode
addition
Text to specch language

5. Android 2.0 Eclair
SDK Released: Oct, 2009
Notable Updates
Mobile accounts for email and
contacts sychronization
Bluetooth 2.1 support
New user interface for the browser
New functions for the calendar app

6. Android 2.1 Eclair
SDK Released: Jan, 2010
Notable Updates
Live Wallpaper: five homescreen
Speech to text added to any text field
Microphone icon for voice dictation in
email, text, and so on

7. Android 2.2 Foryo
SDK Released: May, 2010
Notable Updates
Support for creating hotspots
Adobe Flash 10.1
Multilingual keyboard
Widget Guide addition that helps you
learn the features Android

8. Android 2.3 Gingerbread
SDK Released: Dec, 2010
Notable Updates
Interface revised for easier and faster
user experience
New keyboard for faster text input
Selecting the text feature
Integrating the internal calls

9. Android 3.0 Honeycomb
SDK Released: Feb, 2011
Notable Updates
3D graphics support
Side by side browser tabs
Dual pan modes for address book
Redesigned UI include program
thumbnails
Video chatting with Google Talk
Full screen mode photo gallery
Bluetooth tethering

10. Android 4.0 Ice Cream Sandwich
SDK Released: Oct, 2011
Notable Updates
New Font
Possibility of triggering a picture with
smile
Adding functionality such as
managing folders, bookmarks
Swipe addition to hide notifications
Support for Wi-Fi direct, Bluetooth,
HDP

11. Android 4.1 Jelly Bean
SDK Released: July, 2012
Notable Updates
Faster, smoother, more responsive to
input
Resizable Widget
Google Now, Voice dictation offline
Imporve Android beam
Update to app improved and faster

12. Android 4.4 KitKat
SDK Released: Oct, 2013
Notable Updates
Support for Bluetooth MAP
New framework for transitions in the
user interface
Support for wireless printing
Optimization of memory and touch
screen for faster multitasking

13. Android 5.0 Lollipop
SDK Released: Oct, 2014
Notable Updates
Completely redesigned UI called
Material
Notifications on the loack screen
New pop-up alerts
Priority mode silences less important
notifications
Multiple user accounts for both
phones and tablets
Guest Mode
Screen Pinning

14. Hope you enjoy this information well. Get more
information about the upcoming Android M visit here:
Android M: The next gen of Android OS at Google IO 2015