Android OS ( Operating System)

Before you buy phones based android os there's good to know, what's that android os?.And I think it's good you know little about the android os.I will explain briefly the android os as far as I know. 

Android is the operating system for mobile phones based on Linux. Android provides an open platform to developers for creating their own applications for use by a variety of mobile devices. Initially, Google Inc, bought Android Inc, newcomers who make software for mobile phones. Then to develop Android, formed the Open Handset Alliance, a consortium of 34 companies for hardware, software, and telecommunications, including Google, HTC, Intel, Motorola, Qualcomm, T-Mobile, and Nvidia.

At the inaugural release of Android, 5 November 2007, with the Open Handset Alliance Android states support the development of open standards on mobile devices. On the other hand, Google released the Android code under the Apache license, a license software and open standard mobile device.

In this world there are two types of distributors operating system Android. The first fully supported by Google or Google Mail Services (GMS) and the second is completely free distribution without direct support Google's otherwise known as the Open Handset Distribution (OHD).

Android os version is currently available:

➢Android version 1.1

Android version is equipped with an aesthetic update to the application, alarm clock, voice search (search sound), sending messages to Gmail, and email notification.

➢Android version 1.5 (Cupcake)

There are several updates including the addition of several features in mobile version is the ability to record and watch videos with the camera mode, upload video to Youtube and images to Picasa directly from the phone, A2DP Bluetooth support, the ability to automatically connect to a Bluetooth headset, animated display, and on-screen keyboard that can be adjusted with the system. 

➢Android version 1.6 (Donut)

Displays the search process better than before, the use of battery indicator and control applet VPN. Another feature is the gallery that allows users to select which photos will be deleted; cameras, camcorders and galleries dintegrasikan; CDMA / EVDO, 802.1x, VPN, Gestures, and Text-to-speech engine; contacts dial capability; technological change text to speech (not available on all phones), procurement VWGA resolution. 

➢Android version 2.0/2.1 (Eclair)

Android with version 2.0/2.1 (Eclair), changes made ​​are hardware optimization, improved Google Maps 3.1.2, change the UI with a new browser and support for HTML5, a new list of contacts, support for 3.2 MP camera flash, digital zoom, and Bluetooth 2.1.

➢Android version 2.2 (Froyo: Frozen Yoghurt)

The changes are generally against previous versions include support for Adobe Flash 10.1, speed performance and application of 2 to 5 times faster, integration V8 JavaScript engine that used Google Chrome to accelerate the rendering capabilities of the browser, the installation of an application in the SD Card, WiFi capabilities Hotspot portable, and the ability to auto update in Android Market application. 

➢Android version 2.3 (Gingerbread)

General changes obtained from the Android version include increased capacity to the game (gaming), an increase in copy and paste function, the display interface (User Interface) redesigned, VP8 video format support and WebM, new audio effects (reverb, equalization, headphone virtualization, and bass boost), support the ability of Near Field Communication (NFC), and the support of more than one camera.

➢Android version 3.0 (Honeycomb)

Honeycomb android specially designed for tablets. Android version supports a larger screen size. User Interface on Honeycomb is also different because it is designed for tablets. Honeycomb also supports multi-processor and hardware acceleration (hardware) for graphics. The first tablet is made by running the Honeycomb is the Motorola Xoom.

In general, the features available in Android are:

*Framework application: it allows the use and removal of components available.
*Dalvik virtual machine: a virtual machine optimized for mobile devices.
*Graphics: graphs in 2D and 3D graphics based on OpenGL library.
*SQLite: for data storage.
*Supporting media: audio, video, and various image formats (MPEG4, H.264, MP3,AAC, AMR, JPG, PNG, GIF)
*GSM, Bluetooth, EDGE, 3G, and WiFi (hardware dependent)
*Cameras, Global Positioning System (GPS), compass, and accelerometer (hardware dependent).

The above description is a general description android os, but at least you have the knowledge about the android os before you buy android phones with a view version of the operating system.Here You can also download  free android browsers.