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  2. Micropolis Corporation - Wikipedia

    en.wikipedia.org/wiki/Micropolis_Corporation

    Micropolis boot diskette, as used with the Micropolis dual 5.25-inch drive to boot an IMSAI 8080.. Micropolis's first advance was to take the existing 48 tpi (tracks per inch) standard created by Shugart Associates, and double both the track density and track recording density to get four times the total storage on a 5.25-inch floppy in the "MetaFloppy" series with quad density (Drives :1054 ...

  3. Morrow Pivot - Wikipedia

    en.wikipedia.org/wiki/Morrow_Pivot

    The original model, retrospectively called the Pivot I, [6] was unveiled at COMDEX/Spring '84 in May 1984 and released in November that year. [7] [8] The Pivot I has one 5.25-inch floppy drive, 256 KB of RAM, and an LCD capable of displaying bitmapped graphics at an abridged resolution of 480 by 128 pixels or text at 80 columns by 16 lines.

  4. Floppy disk drive interface - Wikipedia

    en.wikipedia.org/wiki/Floppy_disk_drive_interface

    Most controllers support two floppy drives, so a cable could have 5.25-inch style connectors, 3.5-inch style connectors, or a combination. After IBM introduced the "twist" to floppy cables, and when both 5.25-inch and 3.5-inch drives were in common use, many cables had four connectors: one of each type before the twist, and one of each type ...

  5. List of disk drive form factors - Wikipedia

    en.wikipedia.org/wiki/List_of_disk_drive_form...

    [citation needed] With increasing sales of microcomputers having built in floppy-disk drives (FDDs), HDDs that would fit to the FDD mountings became desirable. Thus HDD Form factors, initially followed those of 8-inch, 5.25-inch, and 3.5-inch floppy disk drives. Because there were no smaller floppy disk drives, smaller HDD form factors ...

  6. IBM Portable Personal Computer - Wikipedia

    en.wikipedia.org/wiki/IBM_Portable_Personal_Computer

    The system featured 256 kilobytes of memory (expandable to 640 KB), an added CGA card connected to an internal monochrome amber composite monitor, and one or two half-height 5 + 1 ⁄ 4-inch 360 KB floppy disk drives, manufactured by Qume. Unlike the Compaq Portable, which used a dual-mode monitor and special display card, IBM used a stock CGA ...

  7. Floppy-disk controller - Wikipedia

    en.wikipedia.org/wiki/Floppy-disk_controller

    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.

  8. Molex connector - Wikipedia

    en.wikipedia.org/wiki/Molex_connector

    The desktop computer hard-drive connector (AMP Mate-n-Lok 1-480424-0 power connector) is standard on all 5.25-inch floppy drives, 3.5-inch PATA and non-SCA SCSI disk drives; however, newer SATA disk drives employ a more advanced interconnection with 15 contacts. These advanced connection systems were first developed by Molex and other connector ...

  9. Floppy disk - Wikipedia

    en.wikipedia.org/wiki/Floppy_disk

    8-inch floppy disk, inserted in drive, (3½-inch floppy diskette, in front, shown for scale) 3½-inch, high-density floppy diskettes with adhesive labels affixed The first commercial floppy disks, developed in the late 1960s, were 8 inches (203.2 mm) in diameter; [4] [5] they became commercially available in 1971 as a component of IBM products and both drives and disks were then sold ...

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