HTML5 is developed as the next major modification of HTML (HyperText Markup Language), the center of markup language of the World Wide Web. HTML5 is the planned next standard for HTML 4.01, XHTML 1.0 and DOM Level 2 HTML. It aims to decrease the requirement for proprietary plug-in-based rich internet application (RIA) technologies such as Adobe Flash, Microsoft Silverlight, and Sun JavaFX.
HTML5 is the next level of HTML, or Hyper Text Markup Language, which makes the backbone of roughly every website on the Internet. HTML4, the last major repetition of the language, debuted in 1997 and has been afterward jabbed and stimulated so that it can grip the load of the modern Web. HTML 4 has been squeezed, prolonged and improved outside its original scope to bring high levels of interactivity and multimedia to Websites.
Plugins such as Flash, Silverlight and Java have added media incorporation to the Web, but not without some cost. In search of an improved user experience and battery life, Apple has merely dropped support for some of these plugins completely on mobile devices, leaving much of the media related Internet remote on iPads and iPhones. HTML5 includes numerous new features, and streamlines functionality in order to provide these processor-intensive add-ons unnecessary for many common functions.
Supercilious content providers sign on many, this means you won't have to worry much about installing yet another plugin just to snoop to a song surrounded in a blog or watch a video on YouTube. Similarly, this is a big deal for platforms that either don't support Flash (e.g., iPhone and iPad), or have well documented problems with it (e.g., Linux). It will be an exacting benefit to those smart phones for which supporting Flash has confirmed challenging.
HTML5's most publicized features are media playback and offline storage. With HTML4, websites frequently have to attain for Flash or Silverlight to merely show a video or play music. HTML5 lets websites openly embed media with the simple HTML tags "<video>" and "<audio>" -- no plugins needed. There are some issues presently being deliberated by the powers that be, and a predominantly oppressive one deals with file format.
Some companies, particularly Mozilla, are approaching for the acceptance of the open-source Ogg format, which is free for anyone to use. Others, like Apple, would choose the higher quality H.264 format, which will ultimately need browser makers to pay licensing fees to support it.
The additional major addition that has acquired media consideration is the capability to store offline data for Web apps. One of the major roadblocks in the march to substitute traditional desktop apps has been that the Web-based ones are inadequate without an Internet connection.
Google is shifting its focus to HTML5. This will be proficient in creating files in Google Docs or draft e-mails when away from an Internet connection. These changes would be repeatedly synced the next time you're online. HTML5 also adds new communicating features, like drag-and-drop, that have previously found their way into Gmail.
Advantages of HTML5
Most probable, you're previously taking benefit of it without knowing. Safari - both mobile and desktop, Google Chrome and Firefox 3.6 all support at least some elements of HTML5. Most of Google based products uses features of the next-generation protocol. If you're using Safari or Chrome or IE, you can check out an experimental version of YouTube that makes use of HTML5's video features.
Most of them think that HTML5 is the future of the Internet. It is estimated that HTML5 will reach W3C Recommendation by late 2010.