screen saver

n : (computer science) a moving design that appears on a

computer screen when there has been no input for a

specified period of time; "screen savers prevent the

damage that occurs when the same areas of light and dark

are displayed too long"

screen reader

A {text-to-speech} system, intended for use by

blind or low-vision users, that speaks the text content of a

computer display.

(1998-10-19)