
Students Guide to Information
Technology
Interactive video
Interactive video systems (IV) allow the user to control a video
programme using a computer. In practice, this means that the
computer and video output appear together on the screen, the
computer output often taking the form of either questions on the
video sequence just seen or a menu of choices for further sequences.
The viewer makes his or her response by typing at the keyboard,
and the computer acts on this to determine which sequences of the
video programme are played next.
IV can be achieved by linking a modified home video recorder to
a computer. However, videodisc is a much