WYSIWYG
From JumbaWiki
WYSIWYG (or What You See Is What You Get) is a name commonly given to systems that show content on the screen very similar to the final product. Microsoft Word is a simple example of how a document viewed on screen closely matches the printed version.
Before the invention of WYSIWYG, all text and control characters appeared in the same typeface and style with little indication of layout (margins, spacing, etc.). Users were required to enter code tags to indicate that some text should be in boldface, italics, or a different typeface or size. These applications used an arbitrary markup language to define the tags. It was impossible to see what the final printed copy would look like, without actually printing it.
