andriod os
Android is a Linux-based operating system designed primarily for touchscreen mobile devices such as smartphones and tablet computers, developed by Google in conjunction with the Open Handset Alliance.Initially developed by Android Inc, whom Google financially backed and later purchased in 2005,Android was unveiled in 2007 along with the founding of the Open Handset Alliance, a consortium of 86 hardware, software, andtelecommunication companies devoted to advancing open standards for mobile devices.
Google releases the Android code as open source, under the Apache License. The Android Open Source Project (AOSP), led by Google, is tasked with the maintenance and further development of Android.Additionally, Android has a large community of developers writing applications ("apps") that extend the functionality of devices, written primarily in a customized version of Java.They are available for download throughGoogle Play or third-party sites. In September 2012, there were more than 675,000 apps available for Android, and the estimated number of applications downloaded from Google Play was 25 billion.
The first Android-powered phone was sold in October 2008, and by the end of 2010 Android had become the world's leading smartphone platform, overtaking Symbian which held its record for years. It had a worldwide smartphone market share of 68% at the second quarter of 2012,and as of Q3 2012, there were 500 million devices activated and 1.3 million activations per day.
History
Android, Inc. was founded in Palo Alto, California in October 2003 by Andy Rubin (co-founder of Danger), Rich Miner (co-founder of Wildfire Communications, Inc.), Nick Sears(once VP at T-Mobile),and Chris White (headed design and interface development at WebTV) to develop, in Rubin's words "...smarter mobile devices that are more aware of its owner's location and preferences. Despite the obvious past accomplishments of the founders and early employees, Android Inc. operated secretly, revealing only that it was working on software for mobile phones. That same year, Rubin ran out of money. Steve Perlman, a close friend of Rubin, brought him $10,000 in cash in an envelope and refused a stake in the company.
Usage share of the different versions as of October 2, 2012.Most Android devices to date still run the older OS version 2.3.x Gingerbread that was released on December 6, 2010.
| Version | Release date | APIlevel | Distribution (October 2, 2012) |
|---|---|---|---|
| 4.1.x Jelly Bean | July 9, 2012 | 16 | 1.8% |
| 4.0.x Ice Cream Sandwich | October 19, 2011 | 14-15 | 23.7% |
| 3.x.x Honeycomb | February 22, 2011 | 11-13 | 1.9% |
| 2.3.x Gingerbread | December 6, 2010 | 9-10 | 55.8% |
| 2.2 Froyo | May 20, 2010 | 8 | 12.9% |
| 2.0, 2.1 Eclair | October 26, 2009 | 7 | 3.4% |
| 1.6 Donut | September 15, 2009 | 4 | 0.4% |
| 1.5 Cupcake | April 30, 2009 | 3 | 0.1 |
No comments:
Post a Comment