Silver light is a web browser plug-in by which we can enable animations, graphics and audio video. You can compare silver light with flash. We can view animations with flash and it's installed as a plug-in in the browser yes, it works on other platforms like linux. But please note it does not work on iOs based devices as iOs does not support external active controls or plugins.

Hi Sapna,

Instead of explaining here i suggest you to go through the below link,

http://www.learn-silverlight-tutorial.com/WhatIsSilverlight.cfm#h1.3

Silver light is a web browser plug-in by which we can enable animations, graphics and audio video. You can compare silver light with flash. We can view animations with flash and it’s installed as a plug-in in the browser.

Yes, animations made in SilverLight can run in other platforms other than window. In whatever platform you want run you just need the SilverLight plug-in.