The Web server appends a data format label for all HTTP object data with a MIME type (Multipurpose Internet Mail Extension type multi-purpose Internet Message extension types).
When the browser retrieves an object from the Web server, it looks at the relevant MIME type to see if it knows what to do with the object. Most browsers can handle hundreds of common types:
HTML format is marked by the text/html type
Normal ASCII text is marked by the Text/plain type
The JPEG type is marked by the Image/jpeg type
GIF type is marked by the Image/gif type
Apple's QuickTime movie for Voide/quicktime type
Microsoft's PowerPoint by Application/vnd.ms-powerpoint type
There are hundreds of common and used mime.
This article is from "Fang Wenjun's It Technology blog" blog, make sure to keep this source http://fangwenjun.blog.51cto.com/7806977/1691700
HTTP protocol Learning (i)