Android 4.1 Jellybean OS

September 15 2012

erbijayamaharjan@gmail.com
er_shnmhrjn@gmail.com
me_subash1901@yahoo.com

Introduction
Android is linux based OS. Its latest version of OS is Android
4.1:Jellybean
OS. Consequently this slide will contain following information :
 Detailed about Jellybean,
 It‟s pros and cons,
 Revolution of different
OS from primitive Android(beta) to
advanced Android( Jellybean),
 Contrast among iOS, Android and Windows phone.

September 15 2012


Android
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Linux based Operating System for smart phones and tablets
Developed by Google and Open Handset Alliances(OHA)
Used in Smart phones of different mobile brands and tablets like
Samsung, Google , HTC , Sony Ericson, Motorola and many
more…
Open Source with large community of developers and applications
Apps developed in java , C , C++ ,java script , python, flash etc
By September 2012, more than 675000 apps were available and
no of estimated Google play download was 25 billion

September 15 2012


Android History
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Android Inc, founded in Palo Alto in October 2003
Later Google acquired android in August 17 , 2005
Brought up a Project called Android Open Source Project
Andy Rubin (Father of Android ) with his team developed a
mobile device platform powered by linux kernel
First commercially released android phone „HTC Dream‟ in
October 22,2008
And then various brands of mobiles like Samsung, Google,
Sony Ericson, Motorola ,etc also used android os.

September 15 2012


Jellybean OS
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Jellybean OS is the latest version of Android ,
Even though it is most powerful android OS
there is not much difference between android
4.0: Ice-cream sandwich in terms of speed and
other basic functionality,
Hence google just increased 0.1 of previous
version and jellybean becomes android 4.1,
Basically google made advancement in factors
like notification, graphical interface, voice
recognition system, search engine, keyboard
and many more.

September 15 2012


Android version history
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Android 1.0
Android 1.1
Android 1.5 : Cupcake
Android 1.6 : Donut
Android 2.0 : Eclair
Android 2.2 : Froyo
Android 2.3 : Gingerbread
Android 3.0 : Honeycomb
Android 4.0 : Ice-cream sandwich
Android 4.1 : Jellybean

September 15 2012


Project butter
Google have been organizing Google I/O
conference annually,
 Likewise in conference of July 27, 2012
google released jellybean as the
consequence of “Project Butter” driven by
them,
 This project was driven to address
complaints of users mainly like touch
interface,
 More over this project is noticeably
success in manage these flaws.
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September 15 2012


Notification
Stacked notifications,
 Uppermost is expanded,
 Each can be zoomed just by pinching,
 These notification are directly connected
to things like Google Now, android beam
using them snapshots, videos etc can
be shared,
 Removing them by swiping,
 Probably best notification interface.
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September 15 2012


Voice Recognition/Voice Typing
Voice Recognition during offline mode,
 Voice Recognition driver is available ,
 Voice Recognition is not good as it is in
online mode but third party can take
better advantage of it,
 Directly connected to mobile search
engine apps like google now, and it also
helps in finding the short meanings and
definition of words
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September 15 2012


Google Now
Search engine driven by voice,
 Gives information like arriving
trains,busses,delay of planes nearest
and good restaurant.
 Used of Knowledge Graph to give
general knowledge.
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September 15 2012


Magic widget
Resizable as we desire,
 Automatic re-arrangement of widget, if
space is available,
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September 15 2012


Gesture Mode
Advanced gesture mode,
 Extended Braille keyboard and keyboard
maps can be downloaded,
 Easiness in text traversal while reading
ebook as well as browsing internet.
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September 15 2012


Android Beam
Simple and Near Field
Communication(NFC) based app in
Android OS,
 Helpful in sharing snaps, songs, videos
etc,
 Simple(Just taping),Instant pairing of
phone or tablet to Bluetooth devices like
handset or speakers.
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September 15 2012


Browser
Fast and smooth animations due to
advanced tools like :
- HTML5
- CSS3
- Canvas Animation Kit
Environment(CAKE)
- Java script engine (v8)
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September 15 2012


Display and Animation
Smooth display and animations due to
Vertical synchronization(V-sync) and triple
buffering
 V-sync is method of responding graphical
signals high-to-low signal and vice-versa,
 Triple buffer is another important feature
resulting smooth animation,
 In triple buffering, during loading of one
buffer memory into video card another
buffer memory starts to draw another
signal.
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September 15 2012


Wi-Fi Service Discovery
System
Supports multicast DNS-based service
discovery( helps connect peer devices),
 Peer-to-peer connection,
 Only web connection with highbandwidth are detected and peered
automatically,
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September 15 2012


Keyboard and
internalization
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Bi-directional typing,
Arabic and Hebrew
Vertical languages(Japanese, Chinese,..)
supported using glyphs,
Key maps supported are
QWERTY, QWERTZ, AZERTY, Dvorak, Col
emak,……overall 21 international key
maps
18 Input languages including
persians, Hindi, Telugu, etc.

September 15 2012


Security
ASLR(Address space Layout
Randomization) and Data Execution
Protection(DEP),
 PIE(Position Independent executable),
 Read only Re-location,
 Classes like dmesg_restrict and
kptr_restricted are used to avoid kernel
leaking,
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September 15 2012


Other Features
Accessibility
 Face Unlock
 Google Play
 Messaging
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September 15 2012


Contrast of OS
Android

IOS

Windows phone

Apps

It has currently at 650,000 total

It has 225,000 total

Windows Phone currently has
100,000 apps

Maps

Offline see street view

Iphone users reared on Street
View

Browser sync

Chrome

Use of Icloud

maps
Absent of browser

Mobile Payment

It has Google wallet.

It doesn’t have NFC.

It has digital wallet.

Video Chat

It uses Gmail, Google talk ,

It uses FaceTime.

It uses Skype.

Call Features

We cant enter into Do Not
Disturb mode

We can enter Do not Disturb
mode.

There is no sort of Do Not
Disturb mode.

Messaging

It has AIM or Facebook message.

It has iMessage

It has Skype, Facebook
message.

Media Streaming

It has Nexus Q.

September 15 2012

It has AirPlay.

means terrific NAVTEQ

It has Smart Glass

Conclusion
Hence we can see that android 4.1: jellybean OS is the best android OS ever made. But it is not much
different than android 4.0: Ice-cream sandwich. Google have made it more advanced to compete
with IOS and windows phone OS. They have shown true capability of android OS.
We can draw out the following conclusions:
pros
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Silky-smooth performance
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Improved notifications
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Chrome as default browser
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Resizable widgets
cons
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Google Now is limited
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Available on few devices
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Few tablet-friendly apps
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No built-in lost device security
But the main challenge of jellybean is that it won‟t be used to with or it won‟t be compatible in much
hardware and software also will be hard to develop since even ICS is having same problem.

September 15 2012


Acknowledgement
We would like to present our gratitude to college for giving us this
platform to present our skill in this android field. We would like
to thanks Prof. Er. Niranjan Khakurel for his continuous
support and encouragement in completing this project paper. And
at last thanks to all of families and friends and all of you…

September 15 2012


Thank You
September 15 2012


Android 4.1 Jellybean OS

Android 4.1 Jellybean OS

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