Sunday, June 17, 2012

Understanding of Android

Android

Android operating system is Linux-based Mobile Phone. Android is open source which source code is free for developers to create their applications to be run on Android.

Android Logo

In the beginning, Android is one of the products made from Android Inc., But Google acquired Android Inc.., And all intellectual property owned by Android Inc. Google Inc. is obtained. Who later developed the system re-acquired Android Inc. Android... As information Android Inc. is a newcomer in terms of making software for mobile phones that are in Palo Alto, California United States. And then formed the Open Handset Alliance, a consortium of 34 companies’ hardware, software, and telecommunications, including Google, HTC, Intel, Motorola, Qualcomm, T-Mobile, Nvidia, etc. Open Handset Alliance to develop Android established that in fact it is the first Open Source OS for Mobile Phone. On 5 November 2007, the initial version which released Android Open Handset Alliance Android with state supports the development of open standards on mobile devices.

On the other hand, Google released the Android code under the Apache license, a license is open standard software and mobile devices.

1. Distributor Android OS
In this world there are two types of distributor’s operating system Android. The first fully supported by Google or Google Mail Services (GMS) and the second is a completely free distribution without the direct support of Google's otherwise known as the Open Handset Distribution (OHD). The founders of Android Inc. working at Google, among them Andy Rubi, Rich Miner, Nick Sears, and Chris White. At that time many consider the functions of Android Inc. just as the software on mobile phones. Since then rumors that Google was about to enter the mobile phone market. In the Google Company, Rubin led the team in charge of developing a program of mobile devices supported by Linux kernel. This shows an indication that Google is preparing for a competition in the mobile phone market. until now has been a lot of air-mobile Android OS on the market, starting from the Google Nexus One, HTC Legend, Sony Ericcson Xperia X10, Samsung Galaxy S and many more. Android provides access to the basic functions of mobile devices using standard calls to the API.

2. The destruction of the border You can combine information from the Internet into the phone, such as contact information, or data on the geographical location to get a new chance.

3. The similarity of the application For Android there are differences between the main phone applications and other software, you can even change the program to dial the number, or screen saver.

4. Quick and easy development The SDK has everything you need to create and run Android applications, including instrument simulators, and advanced debugging tools. Understanding Android, advantages and disadvantages. Google likens the Android as a software stack. Each layer of the stack brings together several programs that support specific functions of the operating system.

The following is the composition of the layer - the layer when viewed from the base layer to top layer:

a. Linux Kernel Bottom of the pile in the kernel architecture of Android.

b. Android Runtime Layer after the Linux kernel is Runtime. Android Runtime Core Libraries and contains the Dalvik Virtual Machine. Core Libraries include a core set of Java libraries, which means that Android includes a set of base libraries that provides most of the functions that exist in the base libraries of Java programming language.

c. Libraries Housed in the same level with the Android Runtime Libraries. Android includes a set of libraries in C / C + + used by the various components that exist on the Android system.

d. Application Framework The next layer is the application framework, which includes a program to manage the basic functions of a Smartphone. Application Framework is a set of basic tools such as resource allocation Smartphone, the phone application, change of inter - process or program, and tracking the physical location of the phone.

e. Application In the top layer located on the application itself. In this layer you find basic Smartphone functions like calling and sending text messages, run a web browser, access the contact list, and others. For the average user, this is the layer that they access most frequently. Their access to basic functions through the user interface.

Excess Mobile Android Multitasking -  Android phones can run many applications that mean you can browse, listen to songs while playing facebook.

Ease in the Notification - Every SMS, Email, or even the latest articles from RSS Reader, there will always be a notification on Android Home Screen, do not miss the LED indicator is blinking, so you will not miss a single SMS, Email or even Miscall.

Easy Access to Thousands of Applications Android via Google Android App Market - If you install applications or games, via Google's Android App Market you can download applications for free. There are many thousands of apps and games that are ready for your download on Android phones.

Cell phones are diverse options - Talk Android phone, it will feel 'different' compared to IOS, if IOS is limited to the iPhone from Apple, then Android is available on mobile phones from various manufacturers, from Sony Ericsson, Motorola, HTC to Samsung. And every mobile phone manufacturer also presents an Android phone with their respective styles, such as Motorola with its Moto blur, Sony Ericsson with its Timescape. So you can freely choose the Android mobile phone in accordance with the 'brand' favorite.

Can install a modified ROM - not satisfied with the standard view of Android, do not worry there are a lot Costume ROM that you can spend on Android phones.

Widget - absolutely right, with the widgets on the home screen, you can easily access a variety of settings quickly and easily.

Google Maniac - If you are a loyal user of Google services from Gmail to Google Reader, Android phones have been integrated with Google services, so you can quickly check email from Gmail.

Disadvantages Mobile Android 

It is undeniable advantages in addition of course there is a shortage of this Android operating system.

Constant Internet connection -  most Android phones require simultaneous Internet connections continuously active alias. The author himself uses the Motorola Milestone, and GPRS internet connection is always active at all times, that means you must be prepared to subscribe to the package that suits to your needs. GPRS in Android 2.2 and above series can be controlled via the data connection settings in a data enabled mobile networks setting. By not activate the data enabled the internet connection will be disconnected so it can only be to Phone and SMS.

Advertising - Applications on Android phones can indeed be obtained easily and for free, but the consequences in each of these applications, will always be on display ads, either the top or bottom of the application. As a suggest that Google Android software stack. Each layer of the stack it brought together some of the programs that support the specific functions of the operating system.

Following the arrangement of layers in view of the layer if basic up to the top layer:

 A. Linux Kernel Pile bottom on this is the kernel architecture of Android.

 B. Android Runtime After the layer of the Linux Kernel is the Android Runtime. Contains the Core Libraries and the Dalvik Virtual Machine. Core Libraries includes a set of core Java libraries, it means Android include one set of library-library basis which provides most of the functions that exist in the library-library Foundation of the Java programming language.

 C. Libraries Housed in the same level with the Android Runtime is Libraries. Android includes a set of libraries-library in C/C++ language used by various components of the Android system.

 D. Application Framework The next layer is an application framework, which includes programs to manage basic Smartphone functions. Application Framework is a set of basic tools such as resource allocation, Smartphone, phone application – processes or switching between programs, and physical location tracking phone.

 E. Application The top layer is set in the application itself. In this layer you find basic Smartphone functions such as call and send a short message, run a web browser, access the list of contacts, and others. For the average user, this is the most often lining them access. They access the basic functions through the user interface.

Advantages of Mobile Android Multitasking- Android phones can run on various applications, which mean you can browse, Playing facebook while listened to the songs.

Ease in Any existing Notification – SMS, Email, or even the latest articles from an RSS Reader,there will always be the notification on the Home Screen of Android Phones, do not miss the flashing Indicator LED 's, so you won't miss a single SMS, Email or Miscall though. Easy access to thousands of Android applications via Google Android App Market – If You install applications or games, via Google's Android Market App you can download a variety of applications for free. There are many thousands of applications and games that are ready to download on Your Android phone.

A diverse selection of mobile phones - Talk Android phone, it will feel ' different ' compared to iOS,iOS if confined to the iPhone from Apple, then Android is available on mobile phones from various manufacturers, ranging from Sony Ericsson, Motorola, HTC and Samsung. And every mobile phone manufacturer was bringing Android phone style with each of Motorola with Moto blur, like her with Timescale, Sony Ericsson. So you can freely choose the Android phone in accordance with the ' brand ' favorite.

Can install a modified ROM – not satisfied with standard Android view, don't worry there are many Costume ROM that you can use on your Android phone. Widgets – absolutely, with the presence of the Widget on the home screen, you can easily access the various settings quickly and easily.

Google Maniac – if you're a loyal user of Google services ranging from Gmail to Google Reader, Android phone has been integrated with Google services, so you can quickly check emails from Gmail. Shortage of Mobile Android Not be denied despite an excess of course there are the flaws of the Android operating system.

Continuous Internet connection – most Android phones require simultaneous internet connection will continuously active. The author himself used the Motorola Milestone, and GPRS internet connection always on each time, that means you have to be ready to subscribe to GPRS package that suits your needs. But in the series android 2.2 and above the data connection can be arranged through the settings enabled in setting mobile data networks. The data does not enable internet connection then its enabled would cut off so just get to Phone and SMS.

Advertising application on Android phones could indeed be obtained easily and free of charge, however the consequences in every application will always plastered ads, whether it's the top or bottom of the application.

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