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    IBM manufactured magnetic disk storage devices from 1956 to 2003, when it sold its hard disk drive business to Hitachi. Both the hard disk drive (HDD) and floppy disk drive (FDD) were invented by IBM and as such IBM's employees were responsible for many of the innovations in these products and their technologies. โ€ฆ See more

    IBM 350
    The IBM 350 disk storage unit, the first disk drive, was announced by IBM as a component of the IBM 305 RAMAC computer system on September 14, 1956. Simultaneously a โ€ฆ See more

    HDDs offered for IBM small systems image

    This section lists IBM manufactured HDDs offered both as an OEM product and for attachment to IBMs small systems such as the System/3, โ€ฆ See more

    On October 17, 1994, IBM's Storage Systems division announced three new families of hard disk drives, the Travelstar 21โ„2-inch family for โ€ฆ See more

    IBM System/360 and other IBM mainframe HDDs image
    OEM and Small Systems HDDs image

    IBM 2302
    The IBM 2302 is the System/360 version of the 1302, with track formatting in accordance with โ€ฆ See more

    IBM 2310
    The IBM 2310 Removable Cartridge Drive was announced in 1964 with the IBM 1800, and then in 1965 with the IBM 1130; it likely first shipped โ€ฆ See more

    Another important IBM innovation is the floppy disk drive. IBM first introduced the 8-inch FDD in 1971 as a read only program load device. โ€ฆ See more

    IBM in some of its operating systems classifies HDDs and FDDs as DASDs, direct access storage devices. Other technologies so classified include:
    IBM 7320 drum See more

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    The IBM3340 hard disk drive (HDD) that began shipping in November 1973 pioneered new low-cost, low-load, landing read/write heads with lubricated disks, and established what became the dominant HDD technology. Al Shugart identified this new โ€œWinchester headโ€ as one of the four most significant developments in mass storage.
    IBM manufactured magnetic disk storage devices from 1956 to 2003, when it sold its hard disk drive business to Hitachi. Both the hard disk drive (HDD) and floppy disk drive (FDD) were invented by IBM and as such IBM's employees were responsible for many of the innovations in these products and their technologies.
    By 1996, IBM had stopped making hard disk drives unique to its systems and was offering all its HDDs as an OEM. IBM uses many terms to describe its various magnetic disk drives, such as direct-access storage device (DASD), [a] disk file and diskette file.
    The IBM 350 disk storage unit, the first disk drive, was announced by IBM as a component of the IBM 305 RAMAC computer system on September 14, 1956. Simultaneously a very similar product, the IBM 355, was announced for the IBM 650 RAMAC computer system. RAMAC stood for "Random Access Method of Accounting and Control".
  3. WebJan 3, 2014 9:30 AM. Tech Time Warp of the Week: The World's First Hard Drive, 1956. IBM unleashed the world's first computer hard drive in 1956. It was bigger than a refrigerator. It weighed...

  4. History: First HDD 55 Years Ago From IBM at 100

    WebJun 20, 2011 · History: First HDD 55 Years Ago From IBM at 100. Ramac 350: usable capacity of 3.75MB, $34,500. By Jean Jacques Maleval | June 20, 2011 at 3:25 pm. IBM Corp. is just celebrating its 100th anniversary โ€ฆ