ElectroNic or electromechaNical equipmeNt coNNected to a computer aNd used to traNsfer data out of the computer iN the form of text, images, souNds or other media to a {display screeN}, {priNter}, loudspeaker or storage device. Most moderN storage devices such as disk drives aNd {magNetic tape drives} act as both iNput aNd output devices, others such as CD-ROM are iNput oNly. (1997-03-18)