Wednesday, 27 February 2013

Google Android,Knowledge and Vioce

Android and Nexus One
On Nov. 5, 2007, Google announced the founding of the Open Handset Alliance, a consortium of dozens of technology and mobile telephone companies, including Intel Corporation, Motorola, Inc., NVIDIA Corporation, Texas Instruments Incorporated, LG Electronics, Inc., Samsung Electronics, Sprint Nextel Corporation, and T-Mobile (Deutsche Telekom). The consortium was created in order to develop and promote Android, a free open-sourceoperating system based on Linux. The first phone to feature the new operating system was the T-Mobile G1, released on Oct. 22, 2008. Android-based phones require the latest third-generation (3G) wireless networks in order to take full advantage of all the system's “smartphone” features, such as one-touch Google searches, Google Docs, Google Earth, and Google Street View.
In January 2010 Google broke into the mobile handset market with the Nexus One. Nicknamed the “Google Phone” and widely perceived to be a direct competitor to the iPhone, the Nexus One debuted to mostly positive reviews. Using the latest version of the Android operating system and boasting a vibrant 480 × 800-pixel screen, it was aesthetically pleasing, and its voice-to-text messaging system signaled a leap in voice-recognition software. However, its lack of native support for multi-touch—a typing and navigation feature pioneered by Apple that allowed users more flexibility in interacting with touchscreens—was seen as a drawback when compared with other handsets in its class.

Google Knol
On Dec. 13, 2007, Google announced that it was getting into the online encyclopaedia business with Knol. In the company's self-proclaimed definition, a knol is a unit of knowledge. The Knol Web site was opened to the general public on July 23, 2008. Like Wikipedia, an open-sourceencyclopaedia, Knol is open to the general public; but unlike Wikipedia, participation in Knol requires a confirmation of identity before any articles or edits are allowed at the Knol Web site. Google bans pornographic, violent, and discriminatory articles.
In exchange for giving up their anonymity, authors have an opportunity to allow ads from Google's AdSense on their Knol Web pages. By sharing with its authors any ad revenue generated by “page views” of their articles, Google hopes to induce submissions by professionals and highly qualified individuals. Authors may choose to allow edits by specific collaborators or open up their articles for editing by the entire Knol community. In addition, Knol operates as a free market, with no limit to the number of articles on the same subject. Google expects that well-written and maintained articles will rise to the top through user ratings. While Google does not edit or officially endorse any Knol article, its administration does choose a few articles to highlight on the Knol home page each day.

Google Voice
In 2007 Google acquired GrandCentral, a start-up subscription service that offered the promise of “one telephone number to rule them all”—a single number that users could give out to family, friends, and business contacts, together with a system for creating rules to determine which of their telephones (work, home, mobile) would be rung according to the incoming caller's identity (as determined by telephone caller ID or the recipient's address book). In addition, subscribers could call the system to retrieve voice mail. On March 12, 2009, Google relaunchedGrandCentral as Google Voice, a free telecommunications service (initially open only to existing GrandCentral subscribers) that added a text messaging system and the ability to make VoIP (voice over Internet protocol) calls for free between any Internet service providers (ISP) located within the United States. Google Voice could also be used for making international calls, though that service was not free.
In addition to challenging traditional business models for long-distance telephone service, Google Voice competed with Skype, another free VoIP service. However, Skype customers needed a computer or a special telephone connected to a computer in order to make any calls, and only domestic calls to other Skype customers were free.

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