An information retrieval system includes a base station and multiple
display stations. A user gives a voice command to one of the display
stations and information is retrieved from the base station and displayed
in real time; the information may be presented to the user both visually
and aurally. The source of the information may be data stored at the base
station, or data relayed by the base station from network sources such as
the Internet, or from radio or television broadcast stations. The display
station has a pull-down screen that can operate like a shade; it retracts
using the energy in a wound-up spring.