From Longman Dictionary of Contemporary Englishmagnetic mediamagˌnetic ˈmedia noun [plural, uncountable] TDmagnetic methods of storing information for computers, for example a hard disk or magnetic tape
Examples from the Corpus
magnetic media• The computer-controlled telescope stores these images on magnetic media.From Longman Business Dictionarymagnetic mediamagˌnetic ˈmedia noun [plural] COMPUTING tapes or disks on which computer information can be storedThe bank uses magnetic media to archive its records. 