TABLE OF CONTENTS Level: 2
Definition: A general reference describing a network system that when installed or operational adds business, productivity, technical efficiency, or some other intrinsic value to an information network. Basic data transmission networks used by business or public users, such as those providing e-mail or Internet services, are considered value-added networks.
(See Value-Added Network .)
Level: 2
Definition: A derogatory term that refers to the tendency on the part of some software development companies to announce the existence of computer software applications before they functionally exist, or to announce release dates for software and then continually delay release of the product. Wired magazine gives out Vaporware of the Year awards annually.
Used in a sentence: We had high hopes for the new software that promised to solve most of our problems, but it turned out to be just vaporware never released to the public.
(See VBR .)
Level: 2
Definition: Refers to the portion of a CRT display signal that corresponds to the time it takes for the electron beam in a television set to travel vertically back to the top of the screen in order to begin scanning or tracing a new video field onto the tube screen. Because anything sent during the VBI does not show on screen, the vertical blanking interval can be used to carry data such as test signals, time code, closed captioning information,...
