noun
modified frequency modulation recording; MFM recording
A magnetic recording method used in early hard disk drives and floppy disks; a technical computing term.
変形周波数変調記録は、古いハードディスクで使われていた技術です。
Modified frequency modulation recording is a technology used in old hard disks.
A compound of 変形 (modified), 周波数 (frequency), 変調 (modulation), and 記録 (recording), directly translating the English term 'modified frequency modulation recording'.