What does media= "screen" mean?

<link type= "Text/css" rel= "stylesheet" href= "css/liangquery.css" media= "screen"/>

<link type= "Text/css" rel= "stylesheet" href= "css/common.css?v=1.1" media= "screen"/>

<link type= "Text/css" rel= "stylesheet" href= "css/bootstrap.min.css" media= "screen"/>

<link type= "Text/css" rel= "stylesheet" href= "css/ui.jqgrid.css?v=0.1" media= "screen"/>

What do you mean, media=screen?

Sometimes we in the analysis of other people's website source code, found in the header tag of the style sheet more "Media=screen" or "media=" print, originally these are relative to the media to set up, like Potoshop, each model also corresponds to a medium. For example, RGB corresponds to our display, CMYK corresponding to the printing and so on.

Refer to screen (default) and submit to computer screens;
Print, output to printer;
Projection, submitted to the projector;
Aural, loudspeaker;
Braille, submitted to the Braille tactile sensing device;
TTY, telex typewriter (using fixed fonts);
TV, TV;
All, output devices

This article is from the "No Water Fish" blog, please be sure to keep this source http://javaqun.blog.51cto.com/10687700/1725550

What does media= "screen" mean?