noun
frequency modulation recording; FM recording
Technical term in computing and data storage; refers to a method of encoding data onto magnetic media using frequency modulation.
この磁気テープは周波数変調記録方式を採用している。
This magnetic tape uses a frequency modulation recording method.
周波数変調 is frequency modulation itself, while 周波数変調記録 is the recording technique that uses it.
Compound of 周波数 (frequency), 変調 (modulation), and 記録 (recording), directly describing the technique.