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  2. 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 ...

  3. Commodore 1541 - Wikipedia

    en.wikipedia.org/wiki/Commodore_1541

    The best-known floppy disk drive for the C64, the 1541 is a single-sided 170-kilobyte drive for 5¼" disks. The 1541 directly followed the Commodore 1540 (meant for the VIC-20). The disk drive uses group coded recording (GCR) and contains a MOS Technology 6502 microprocessor, doubling as a disk controller and on-board disk operating system ...

  4. History of the floppy disk - Wikipedia

    en.wikipedia.org/wiki/History_of_the_floppy_disk

    Drawings from IBM Floppy Disk Drive Patents. IBM's decision in the late 1960s to use semiconductor memory as the writeable control store for future systems and control units created a requirement for an inexpensive and reliable read only device and associated medium to store and ship the control store's microprogram and at system power on to load the microprogram into the control store.

  5. Commodore 1571 - Wikipedia

    en.wikipedia.org/wiki/Commodore_1571

    The Commodore 1571 is Commodore's high-end 5¼" floppy disk drive, announced in the summer of 1985. With its double-sided drive mechanism, it has the ability to use double-sided, double-density (DS/DD) floppy disks, storing a total of 360 kB per floppy. It also implemented a "burst mode" that improved transfer speeds, helping address the very ...

  6. Floppy disk variants - Wikipedia

    en.wikipedia.org/wiki/Floppy_disk_variants

    A Maxell-branded 3-inch Compact Floppy Disk. The floppy disk is a data storage and transfer medium that was ubiquitous from the mid-1970s well into the 2000s. [1] Besides the 3½-inch and 5¼-inch formats used in IBM PC compatible systems, or the 8-inch format that preceded them, many proprietary floppy disk formats were developed, either using a different disk design or special layout and ...

  7. Commodore 1540 - Wikipedia

    en.wikipedia.org/wiki/Commodore_1540

    The Commodore 1540 (also known as the VIC-1540) is the companion floppy disk drive for the VIC-20 home computer.It was introduced in 1982. [3] [4] It uses single-sided 5¼" floppy disks, on which it stores roughly 170 kB of data utilizing Commodore's GCR data encoding scheme.

  8. Category:Floppy disk drives - Wikipedia

    en.wikipedia.org/wiki/Category:Floppy_disk_drives

    Pages in category "Floppy disk drives" The following 21 pages are in this category, out of 21 total. This list may not reflect recent changes. ...

  9. Commodore 8050 - Wikipedia

    en.wikipedia.org/wiki/Commodore_8050

    These drives are not dual-mode, so they cannot read or write 5¼-inch disks formatted by lower-capacity 48-tpi models, such as the Commodore 1541 or 4040. They also cannot read or write 5¼-inch disks formatted by 96-tpi drives, such as the 640 kilobyte IBM PC disk or 880 kilobyte Commodore Amiga disk, due to the minor difference in track spacing.

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