
In 1987, IBM introduced the VGA connector, which has become the universal standard for analog video connections to monitors and touch screens. In 1999, DVI was introduced and has likewise become the standard for digital video connections to monitors and touch screens, even though it was never fully adopted and almost all displays can still support analog VGA. But times are changing and by 2015 both VGA and DVI are planned to be replaced by DisplayPort by many tech manufacturers.