Android is a young but very dynamic open source mobile operating system developed by a consortium led by Google. Since its debut in 2007 it has conquered about 50% smartphone market share and runs majority of the smartphones shipped in 2011. Android newest Honeycomb release is designed to extend Android supremacy to the tablet market.
Windows Phone is a mobile operating system developed by Microsoft, and is the successor to its Windows Phone platform. Unlike its predecessor, it is primarily aimed at the consumer market rather than the enterprise market. It was launched in Europe, Singapore, Australia, and New Zealand on October 21, 2010, and in the US and Canada on November 8, 2010, Mexico on November 24, 2010, the PAL region on December 3, 2010, and Asia in early 2011. With Windows Phone, Microsoft offers a new user interface with its design language named Metro, integrates the operating system with third party and other Microsoft services, and controls the hardware it runs on.
iOS (known as iPhone OS before June 2010) is Apple’s mobile operating system. Originally developed for the iPhone, it has since been extended to support other Apple devices such as the iPod touch, iPad and Apple TV. Apple doesn’t license iOS for installation on third-party hardware. As of May 31, 2011, Apple’s App Store contains more than 500,000 iOS applications, which have collectively been downloaded more than 15 billion times. In the last quarter of 2010, it had a 26% share of the smartphone operating system market in terms of units sold, behind Google’s Android and Nokia’s Symbian. As of May 2010, it accounted for 59% of mobile web consumption?not including the iPad?in North America.
Samsung bada is a smartphone platform , which is created for wide range of device, unveiled in 2010. ?bada? is a Korean word that means ?ocean? and ?seashore?. ?bada? in itself embodies the open possibilities of the ocean: it can accommodate the various applications created by developers and it provides an interesting new space that offers unprecedented enjoyment to its users.
bada is a new blue ocean of mobile applications for developers, and customers will have a wider choice of smartphones with cost-effective yet powerful bada-powered phones.
HTML5 is the latest version of HTML and XHTML. The HTML standard defines a single language that can be written in HTML and XML. It attempts to solve issues found in previous iterations of HTML and addresses the needs of Web Applications, an area previously not adequately covered by HTML.
Java Platform, Micro Edition, or Java ME, is a Java platform designed for embedded systems (mobile devices are one kind of such systems) . Target devices range from industrial controls to mobile phones (especially feature phones) and set-top boxes. Java ME was formerly known as Java 2 Platform, Micro Edition (J2ME).
Java ME was designed by Sun Microsystems, now a subsidiary of Oracle Corporation; the platform replaced a similar technology, PersonalJava. Originally developed under the Java Community Process as JSR 68, the different flavors of Java ME have evolved in separate JSRs. Sun provides a reference implementation of the specification, but has tended not to provide free binary implementations of its Java ME runtime environment for mobile devices, rather relying on third parties to provide their own.
As of 22 December 2006, the Java ME source code is licensed under the GNU General Public License, and is released under the project name phoneME.