The document discusses the history and features of the Android mobile operating system. It describes Android's origins at Android Inc. in 2003, key versions like Cupcake, Donut, Jellybean, and design elements like the Android robot logo. Jellybean from 2012 focused on performance, expandable notifications, predictive keyboard, and face unlock security. Project Butter aimed to improve responsiveness. The minimum hardware requirements for Jellybean are listed as 512MB RAM, 1GHz processor, and a 720p display.

1. Name-Pragya , Satyam
Class-B.Tech Final Year(CSE)
Roll No.-1336710013, 1336710021

2. What is ‘android’?
• Android is a mobile operating system developed
by Google, based on the Linux kernel and designed
primarily for touchscreen mobile devices such
as smartphones and tablets.

3. History of Android
• Android was founded in Palo Alto, California in October
2003 by Andy Rubin, Rich Miner, Nick Sears and Chris
White to develop.
• Initially developed by Android Inc., which Google bought
in 2005.

4. Logo of android

5. Why android called ‘android’?
• The Android Robot actually come from the character
named Android from the 90's game Gauntlet.

6. versions
• Applepie
• Bananabread
• Cupcake
• Donut
• Eclair
• Froyo
• Gingerbread
• Honeycomb
• Icecream sandwitch
• Jellybean
• Kitkat
• Lollipop
• Marshmallow
• Nougat

7. Drawbacks of icecream
sandwitch?
• Face unlock

9. Introduction of Jellybean
• The jellybean developed in June 2012.
• Focusing on performance and improvements to the
notification system allowing for "expandable"
notifications with action buttons, and other internal
changes.
• Jellybean was first released in Galaxy Nexus S.

10. Features
• Project butter
• Voice search
• Notification expandable
• Predictive keyboard
• Face unlock liveness check

11. Project Butter
• Of all the new features in Android 4.1, this is the biggest
improvement. “Project Butter” is the codename for all of the
work that was done to make Android faster, smoother, and
more responsive.

12. Voice Search
• For some questions, such as “Who is the prime minister
of the India?”, Google Now will speak an answer back to
you.

13. Notification Expandable
• Notifications in Android now show more information. You can
expand them with your fingers to view more information – for
example, you can view part of a screenshot you took or see
the text of an email that just arrived. You can perform actions
such as sharing an image or replying to an email directly from
the notification drawer.
•

14. Predictive Keyboard
• Android’s keyboard now tries to predict the next word
you’ll type before you’ve even started typing it.

15. Face Unlock Liveness Check
The Face Unlock feature in previous versions of Android could be
defeated by holding a photo in front of the camera. To help prevent
this, there’s now an optional “Liveness check” you can enable – if
you enable this feature, you’ll have to blink while unlocking your
device with your face.

16. Sub versions of jellybean
• Jellybean 4.1 - Linux kernel 3.0.31
• Jellybean 4.1.1
• Jellybean 4.1.2
• Jellybean 4.2 - Linux kernel 3.4.0
• Jellybean 4.2.1
• Jellybean 4.2.2
• Jellybean 4.3 - Linux kernel 3.4.39

17. API’s level of Jellybean
Versions Release Date API Level
Android 4.1-4.1.2 June 2012 16
Android 4.2-4.2.2 Nov 2012 17
Android 4.3 July 2013 18

18. Jellybean 4.1 vs 4.2
Clock
 Android 4.1’s Clock app
only has a clock function.
But Android 4.2 adds two
tabs for Stopwatch and Timer
in its Clock app.

19. Video
 you can trim your videos
right within the Gallery app in
Android 4.2.
 This is not possible in
Android 4.1.

20. Status bar, Notification & Toggle
 There’s an additional Quick
Settings pull-down from the
Status Bar in 4.2. This new pull-
down menu is also accessible via
the Quick Settings button on the
upper-right corner of the
Notification Shade.
 On phones, you can also
access Quick Settings by swiping
down from the Status Bar with
two fingers.

21. Disadvantages
• Missing december in jellybean
• In the Update 4.2.0 the user observed that December
was missing from their calender but Google Updated
that in its Update to 4.2.1.

22. • Poor Battery Life
• Complaints about poor battery life are common for
smartphones generally, but some people have
complained that their device’s battery life has been
noticeably worse after upgrading to Jelly Bean.

23. Minimum hardware requirement
512MB RAM
1GHz Processor
720px Display