A web browser is a application software for retrieving and presenting and traversing information resources on the world wide web.An information resource is identified by a Uniform Resource Identifier(URL/URI) and may be a web page,image,video or other piece of content.Hyperlink presents in resources enable users easily to navigate their browser to related resources
The first browser , called World Wide Web(w w w),was created in 1990.That browsers name was changed to Nexus to avoid confusion with the developing information space known as the World Wide Web.The first browser in graphical interface was mosaic, which appeared in 1993 and "the world's first popular browser"which made the World Wide Web system easy to use and more accessible to the average person.Many of the user interface features in Mosaic went into Netscape Navigator.
Microsoft responded with its INTERNET EXPLORER in 1995, also heavily influenced by Mosaic, initiating the industry's first browser war.Bundled with Windows , Internet Explorer gained dominance in the web browser market; Internet Explorer usage share peaked at over 95% by 2002.
OPERA debuted in 1996; it has never achieved widespread use, having less than 2% browser usage share as of February 2012 according to Net Applications. Its Opera-mini version has an additive share, in April 2011 amounting to 1.1% of overall browser use, but focused on the fast-growing mobile phone web browser market, being preinstalled on over 40 million phones. It is also available on several other embedded systems, including Nintedo's wii video game console.
Apple's SAFARI had its first beta release in January 2003; as of April 2011, it had a dominant share of Apple-based web browsing, accounting for just over 7% of the entire browser market
In 1998, Netscape launched what was to become the MOZHILLA Foundation in an attempt to produce a competitive browser using the open source software model. That browser would eventually evolve into Firefox,which developed a respectable following while still in the beta stage of development; shortly after the release of Firefox 1.0 in late 2004, Firefox (all versions) accounted for 7% of browser use. As of August 2011, Firefox has a 28% usage share.
The most recent major entrant to the browser market is Chorme,first released in September 2008. Chrome's take-up has increased significantly year by year, by doubling its usage share from 8% to 16% by August 2011. This increase seems largely to be at the expense of Internet Explorer, whose share has tended to decrease from month to month. In December 2011, Chrome overtook Internet Explorer 8 as the most widely used web browser but still had lower usage than all versions of Internet Explorer combined. Chrome's user-base continued to grow and in May 2012, Chrome's usage passed the usage of all versions of Internet Explorer combined. By April 2014, Chrome's usage had hit 45%.
Available web browsers range in features from minimal, text-based user interfaces with bare-bones support for HTML to rich user interfaces supporting a wide variety of file formats and protocols. Browsers which include additional components to support e-mail,Uesnet news, and Internet Relay Chat(IRC), are sometimes referred to as "Internet suites"rather than merely "web browsers.
Furthermore, most browsers can be extended via plug-ins,downloadable components that provide additional features.
Most major web browsers have these user interface elements in common:
- Back and forward buttons to go back to the previous resource and forward respectively.
- A refresh or reload button to reload the current resource.
- A stop button to cancel loading the resource. In some browsers, the stop button is merged with the reload button.
- An address bar to input the Uniform Resource Identifier (URI) of the desired resource and display it.
- A search bar to input terms into a search engine, In some browsers, the search bar is merged with the address bar
- A status bar to display progress in loading the resource and also the URI of links when the cursor hovers over them, and page zooming capability.
- The viewport, the visible area of the webpage within the browser window.
- The ability to view the HTML source for a page.
Lists of popular web browser
1.Emacs/w3-emacs has full web browser functionality.
2.firefox- 20 million users and allows you to import your favoraites,settings and other information from the internet.
3.Google Chrome - browser which was released in 2008
4.Internet Explore - Released by Microsoft .
5.Lynx - Lynx is a text browser that allows you greater speed vthan graphical browser.
6. Opera - the most popular alternative browser due to its very fast speed and amount of features.
7.Avant Browser -Avant Browser is an ultra-fast web browser.Its user-friendly interface brings a new level of clarity and effiency to your browsing experience , and frequent upgrades have steadily improved its reliability.
8. Safari- is a web browser developed by Apple and designed to bring you a beatiful browsing experience.
9. Deepnet Explore - the world s first browser with RSS news reader ,P2P client intergration and phishing alarm.the browser s superior security , functionality and usability makes it stand out in a crowd.
A mobile browser, also called a microbrowser, minibrowser, or wireless Internet browser (WIB), is a Web browser designed for use on a mobile device such as a mobile phones or PDA .Mobile browsers are optimized so as to display Web content most effectively for small screens on portable devices. Mobile browser software must be small and efficient to accommodate the low memory capacity and low-bandwidth of wireless handheld devices. Typically they were stripped-down web browsers, but as of 2006 some mobile browsers can handle more recent technologies like CSS 2.1 ,Java script , and Ajax.
Websites designed for access from these browsers are referred to as wireless portals or collectively as the Mobile Web.They may automatically create "mobile" versions of each page.
POPULAR MOBILE BROWSERS
1. Android Browser
3 .UC Browser
6.Firefox for mobile
Mobile HTML transcoders
Mobile transcoders reformat and compress web content for mobile devices and must be used in conjunction with built-in or user-installed mobile browsers. The following are several leading mobile transcoding services.
. vision mobile server