WYSIWYG
Pronounced as wizz-e-wig, WYSIWG is short for What You See Is What You Get and is a term coined by Charles Simonyi in 1974 to describe the ability of being able to display a file or document exactly how it is going to be printed or viewed.
Tip: This term is WYSIWYG, not WYS1WYG. This is a common misspelling of WYSIWYG; the I (i) is not a 1 (one).
Also see: Printer definitions, WYSIWYP