New tags in HTML 5

1. <canvas>: This is used for rendering dynamic bitmap graphics  or games.

2. <command>: This is used for  a command button, like a radiobutton, a checkbox, or a button, only visible if it is inside a menu element.

3. <audio> is used to define sound stream

4. <datalist> defines a list of options for input, only supported by Firefox and Opera, not Chrome and IE

5.  Other new tags
 <details>
<embed>
<figure>
<footer>
<header>
<hgroup>
<keygen>
<mark>
<meter>
<nav>
<output>
<progress>
<ruby>
<section>
<time>
<video>
<wbr>