Information processing; flexible disk cartridge 200 using one or two sides; electromagnetic properties at 13 262 flux transitions per rad, two-frequency recording mode or modified frequency modulation recording— 5 стр.
Information processing; flexible disk cartridge 200 using two sides; method of recording and formatting using modified frequency modulation recording with 13 262 flux transitions per rad— 11 стр.
Information processing; flexible disk cartridge 130 using one side; method of recording and formatting using two frequency recording mode with 7958 flux transitions per rad, 1,9 tracks per mm— 11 стр.