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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
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Android
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
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Android History 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.
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Jellybean OS 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.
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Android version history 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
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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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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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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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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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Magic widget
Resizable as we desire, Automatic re-arrangement of widget, if
space is available,
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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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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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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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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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Wi-Fi Service Discovery System
Supports multicast DNS-based service discovery( helps connect peer devices),
Peer-to-peer connection, Only web connection with high-
bandwidth are detected and peered automatically,
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Keyboard and internalization Bi-directional typing, Arabic and Hebrew Vertical languages(Japanese,
Chinese,..) supported using glyphs, Key maps supported are QWERTY,
QWERTZ, AZERTY, Dvorak, Colemak,……overall 21 international key maps
18 Input languages including persians, Hindi, Telugu, etc.
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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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Other Features Accessibility Face Unlock Google Play Messaging
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Contrast of OSAndroid 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 means terrific NAVTEQ
mapsBrowser sync Chrome Use of Icloud 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.It has AirPlay.
It has Smart Glass
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ConclusionHence 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 Silky-smooth performance Improved notifications Chrome as default browser Resizable widgetscons Google Now is limited Available on few devices Few tablet-friendly apps 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.
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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
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