Ibm formatted floppy disk1/21/2024 The diskettes were named Dysan 3¼" Flex Diskette (P/N 802950), Tabor 3¼" Flex Diskette (P/N D3251), sometimes also nicknamed "Tabor" or "Brown" at tradeshows. Tabor Drivette Dysan 3¼" Flex Diskettes (P/N 802950)Īnother unsuccessful diskette variant was the Drivette, a 3¼-inch diskette drive marketed by Tabor Corporation of Westland, Massachusetts, USA between 19 with media supplied by Dysan, Brown and 3M. Patent 4,482,929 on the media and the drive for the DemiDiskette. IBM wrote off several hundred million dollars of development and manufacturing facility. The product was announced and withdrawn in 1983 with only a few units shipped. The prospective users, both inside and outside IBM, preferred standardization to what by release time were small cost reductions, and were unwilling to retool packaging, interface chips and applications for a proprietary design. This program was driven by aggressive cost goals, but missed the pulse of the industry. At about half the size of the original 8-inch floppy disk the name derived from the prefix demi for "half". In the early 1980s, IBM Rochester developed a 4-inch floppy disk drive, the Model 341 and an associated diskette, the DemiDiskette. Non-standard media and devices IBM DemiDiskette IBM DemiDiskette media and Model 341 FDD 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 encoding methods for the data held on the disk. The floppy disk is a data storage and transfer medium that was ubiquitous from the mid-1970s well into the 2000s. For the MSD floppy drive, see MSD Super Disk.
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