autochanger
nounEtymology From auto- + changer.
1
A device for playing multiple music media of a certain kind (gramophone records, compact discs, etc.) in a predetermined sequence without user intervention.
- Cedric [...] opened the record player and showed him the revolving disc and the others poised above it on the auto-changer.1971, Richard Carpenter, Catweazle and the Magic Zodiac, Harmondsworth: Puffin Books, page 71:
2
Computing, Engineering, Mathematics, Natural sciences, Physical sciences, Sciences An automatic tape loader, for switching automatically between several computer backup tapes.