(1) An expansion
card that is used to extend a slot for a
chip or card in
a fully loaded computer to make room to plug it in. It may also refer to a card
that contains several slots used in low-profile, space-saving cabinets. The
cards are plugged into the riser card and reside parallel with the
motherboard.
(2) A PC expansion card that contains audio, modem and networking
capabilities. See also AMR
and
CNR.