input/output control unit
Also found in: Acronyms.
input/output control unit[′in‚pu̇t ′au̇t‚pu̇t kən′trōl ‚yü·nət]
The piece of hardware which controls the operation of one or more of a type of devices such as tape drives or disk drives; this unit is frequently an integral part of the input/output device itself.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.