Android is a mobile operating system developed by Google that has seen many updates since its initial release in 2007. Some key updates include Android 1.5 "Cupcake" in 2009, Android 2.2 "Froyo" in 2010, Android 4.4 "KitKat" in 2013, and the most recent version Android 5.0 "Lollipop" released in 2014. Each version added new features and capabilities to Android smartphones and tablets.

1. Evolution of ANDROID

2.  R.Karthik kumar
Narasaraopeta Institute of Technology

3. The version history of the Android mobile operating
system began with the release of the Android beta in
November 2007. The first commercial version, Android
Angel Cake 1.0, was released in September 2008.
Android is under ongoing development by Google and
the Open Handset Alliance (OHA), and has seen a
number of updates to its base operating system since its
initial release.
Since April 2009, Android versions have been developed
under aconfectionery-themed code name and released
in alphabetical order, beginning with Android 1.5
"Cupcake";
The most recent major Android update
is Android 5.0 "Lollipop", which was released on
November 3, 2014.

4.  Android is a mobile operating system (OS)
based on the Linux kernel and currently
developed by Google. With a user
interface based on direct manipulation,
Android is designed primarily
for touchscreen mobile devices such
as smartphonesand tablet computers.
 "Andy" Rubin is the co-founder of android

5.  The OS uses touch inputs that loosely
correspond to real-world actions, like
swiping, tapping, pinching, and reverse
pinching to manipulate on-screen objects,
and a virtual keyboard. Despite being
primarily designed for touchscreen input, it
has also been used in game consoles, digital
cameras, regular PCs, and other electronics.
As of 2015, Android has the largest installed
base of all operating systems

6. 
 Android Angel Cake 1.0 (API level 1)
 2.2 Android 1.1 Battern Burg (API level 2)
 2.3 Android 1.5 Cupcake (API level 3)
 2.4 Android roid 2.0 Éclair (API level 5)
◦ 2.5.1 Android 2.0.1 Éclair (API level 6)
◦ 2.5.2 Android 2.1 Éclair (API level 7)
 2.6 Android 2.2–2.2.3 Froyo (API level 8)
 2.7 Android 2.3–2.3.2 Gingerbread (API level 9)
2.7.1 Android 2.3.3–2.3.7 Gingerbread (API level 10)
 2.8 Android 3.0 Honeycomb (API level 11)
2.8.1 Android 3.1 Honeycomb (API level 12)
2.8.2 Android 3.2–3.2.6 Honeycomb (API level 13)
 From 2.9 Android 4.0–4.0.2 Ice Cream Sandwich (API level 14)
 to 2.9.1 Android 4.0.3–4.0.4 Ice Cream Sandwich (API level 15)
 From 2.10 Android 4.1–4.1.2 Jelly Bean (API level 16)
 to 2.10.1 Android 4.2–4.2.2 Jelly Bean (API level 17)2.10.2 Android 4.3–4.3.1 Jelly Bean
(API level 18)
 From 2.11 Android 4.4–4.4.4 KitKat (API level 19)
 to 2.11.1 Android 4.4W–4.4W.2 KitKat, with wearable extensions (API level 20)
 From 2.12 Android 5.0–5.0.2 Lollipop (API level 21)
 to 2.12.1 Android 5.1–5.1.1 Lollipop (API level 22)

7. The Android Story
Android is the operating system that powers more
than one billion smart phones and tablets user . Since
these devices make our lives so sweet, each Android
version is named after a dessert. Whether it's getting
directions or even slicing virtual fruit, each Android
release makes something new possible. Version
1.0,1.1 are not named.

8. Angel Cake(1.0)
Battern Burg(1.1)
Cupcake (1.5)
Donut (1.6)
Eclair (2.0–2.1)
Froyo (2.2–2.2.3)
Gingerbread (2.3–2.3.7)
Honeycomb (3.0–3.2.6)
Ice Cream Sandwich (4.0–4.0.4)
Jelly Bean (4.1–4.3.1)
KitKat (4.4–4.4.4, 4.4W–4.4W.2)
Lollipop (5.0–5.1.1)

9. ANGEL CAKE 1.0
1st version
This is the 1st version of the Android latter
the name was released as the ANGEL CAKE.
(it was the one of the unsucessful version of
the Android)

10. This was the 2nd version of the Android this
is also the one of the un-popular version of
the Android
BATTEN BURG(1.1)
2nd version

11. Cupcake launched in On April 27, 2009, .it
was the android first(1st) version to
launch android version 1.5 cupcake . but
it was not popular
Android 1.5 cupcake

12. It was released on September 15,
2009, It is the second version of the
android .and it is the next version of
The (cupcake).in this world's
information is at your fingertips –
search the web, get driving
directions... or just watch cat videos.
Android 1.6 Donut

13. Hence it is the next version of
donut.it was lunched On October 26,
2009.you can choose your home
screen just the way you want it.
Arrange apps and widgets across
multiple screens and in folders.
Stunning live wallpapers respond to
Android 2.0 Eclair

14. It the next version of eclair .it was
released onDecember 3, 2009. It
has a special feature Voice Typing
lets you input text, while Voice
Actions allow you to control your
phone, just by speaking. It was the
Android 2.2 Froyo

15. This version is gingerbread 2.3 .it
was relased on May 20, 2010, it
was added with New sensors
make Android great for gaming –
so you can touch, tap, tilt and
play away. This is mostly for
gaming and the remaining is same
seen in previous versions.
Android 2.3 Gingerbread

16. It was released on December 6,
2010.This was designed for
tablets, this release opens up
new horizons wherever you are.
Android 3.0 Honeycomb

17. It was launced on February 22,
2011.Android comes of age with a
new, refined design. Simple,
beautiful and beyond smart. As
there are no more special features
in this .since this version flops.
Android 4.0 Icecream sandwich

18. Jelly bean was launched on July 9, 2012,
Android is fast and smooth with slick graphics.
With Google Now, you get just the right
information at the right time.
And with more than 1 million apps on Google
Play and thousands of Android devices, you've
got the freedom to do what you want on any
device you choose.
Android 4.1 Jelly Bean

19. It was one of mostly using
software.it was released
onOctober 31, 2013.Smart, simple
and truly yours. A more polished
design, improved performance and
new features.
Hence it became more popular
Android 4.4 KitKat

20. It was the latest version of the android
.hence it occupy second position in
android it was launched on November
12, 2014
.A sweet new take on Android. Get the
smarts of Android on screens big and
small – with the right information at
the right moment.
Android 5.0 Lollipop

21. some of the features of the android
 Touch screen
 Camera primary ,secondary
 Ram,rom
 Vedio call,voice call
 3G-4G,wi-fi,bluetooth
 Sensor recogniging
 Vertual key board,app store.
 Memory card,dual sim
 Sms ,mms
 Lock,hotspot………etc .