No plug-in needed. Touted once as the best ways to create interactivity on the Internet . Overall performance can be slow to execute. Audio limited to the .au format. Flash, by Macromedia is an easy way to create interactivity and animation to your Web environment.
File size is surprisingly small and works across many browsers.
Flash can now be combined with RealMedia to create real time full animation . Needs Shockwave plug-in . Can perform using Java Player but much more limited. Graphics are mostly vector images to reduce file size which can be restrictive. Quality is out performing competitors at this stage.