and soon after, IBM began using 720 kB
double-sided
double-density MFM disks in PCs like the IBM PC Convertible . IBM PC compatibles
Kaynak: History of the floppy diskWhen the Atari XF551 drive came out, not only was it Atari's first drive that could read
double-density disks, it was also
double-sided.
Kaynak: Atari DOSWith its
double-sided drive mechanism, it had the ability to utilize
double-sided,
double-density (DS/DD) floppy disks natively.
Kaynak: Commodore 1571In contrast, the Commodore 1581 3½" drive only supported 800 kB
double-sided,
double-density disks. Features: In addition to the higher
Kaynak: CMD FD seriesPurple Book is the informal name for Sony and Philips ' specification document for the
double-density compact disc (DDCD) format.
Kaynak: Purple BookIt used two 400 KB disk drives, utilizing
double-density double-sided 5.25" diskette s. As a luggable, it weighed about 18 pounds.
Kaynak: Osborne Vixendrives, and is credited with the invention of DS/DD (
double-sided,
double-density) versions which became its primary product in the early 1980s.
Kaynak: Tandon Corporation5 | 1 | 4 inch drive is smaller than that of a 40-track
double-density (360 kB) drive but can format, read and write 40-track disks well
Kaynak: Floppy diskDeathlord boasts a world of 16 continents, 128 unique monsters, and twenty dungeons, yet fits on only 2
double-density 5¼" floppy disks as
Kaynak: DeathlordAnother one, the LT-1, was digitally formatted - 720 kB, 245TPI, 80 tracks/side,
double-sided,
double-density. They were used exclusively
Kaynak: Floppy disk variantssequencer with 100 patterns and 10 songs and a
double-sided ,
double-density 3.5 inch floppy disk drive for song and other data storage types.
Kaynak: Korg X3When used in “single-
density” mode, laser scribers use a dot matrix of 5 dots horizontal and 9 dots vertical, in “
double-density” mode, the
Kaynak: SEMI fontdensity disk controller chip on the 4FDC with a FD1791 (early production) or Fujitsu MB8876A (later production)
double-density controller chip.
Kaynak: 4FDC Floppy Disk Controller The DOS Plus adaptation for the BBC Master 512 supported two FAT12 formats on 80-track,
double-sided,
double-density 5.25" drives, which
Kaynak: FAT (reserved sectors)