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Later renamed the Apple SuperDrive (G7287), the Apple FDHD Drive (Floppy Disk High Density) was introduced in 1989 as Apple's first external 1.44 MB high-density double-sided 3 + 1 ⁄ 2-inch floppy drive. It supported all of Apple's 3.5" floppy disk formats as well as all standard PC formats (e.g. MS-DOS, Windows), allowing the Macintosh to ...
3.5-inch and 5.25-inch drives connect to the floppy controller using a 34-conductor flat ribbon cable for signal and control. Most controllers support two floppy drives, although the Shugart standard supports up to four drives attached to a single controller. A cable could have 5.25-inch style connectors, 3.5-inch style connectors, or a ...
Disk II drives. The Disk II Floppy Disk Subsystem, often rendered as Disk ][, is a 5 + 1 ⁄ 4-inch floppy disk drive designed by Steve Wozniak at the recommendation of Mike Markkula, and manufactured by Apple Computer It went on sale in June 1978 at a retail price of US$495 for pre-order; it was later sold for $595 (equivalent to $2,780 in 2023) including the controller card (which can ...
The Apple IIc had a built-in 5.25-inch floppy drive (140 KB) along the right side of the case—the first Apple II model to include such a feature. Along the left side of the case was a dial to control the volume of the internal speaker, along with a 1 ⁄ 8-inch monaural audio jack for headphones or an external speaker. A fold-out carrying ...
The system was equipped with four 50-pin Apple II bus-compatible slots for expansion cards. External 5.25" and 8" floppy disk drive peripherals (made by Fujitsu) were available for the Concept. The 8" drive had a formatted capacity of 250 kB. The 5.25" drive was read-only, and disks held 140kB. The video card was integrated in the monitor's ...
When the controller and disk drive are assembled as one device, as it is the case with some external floppy disk drives, e.g., Commodore 1540 and USB floppy disk drives, [27] the internal floppy disk drive and its interface are unchanged, while the assembled device presents a different interface such as IEEE-488, parallel port or USB.
These were sold at a lower price point and widely used in home computer floppy drives. The WD2791-WD2797 series added an internal data separator using an analog phase-locked loop, with some external passive components required for the VCO. They took a 1 MHz or 2 MHz clock and were intended for 8-inch (203 mm) and 5.25-inch (133 mm) drives. [7]
Seagate ST506 5¼-inch HDD with cover removed 5.25 inch MFM hard disk drive. The ST-506 and ST-412 (sometimes written ST506 and ST412 [1]) were early hard disk drive products introduced by Seagate in 1980 and 1981 respectively, [1] that later became construed as hard disk drive interfaces: the ST-506 disk interface and the ST-412 disk interface.
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