magnetic tape switching unit

magnetic tape switching unit

[mag′ned·ik ¦tāp ′swich·iŋ ‚yü·nət]
(computer science)
A device which permits the computer operator to bring into play any number of tape drives as required by the system.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.