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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 ...
The drive was also present in prototypes of the original Apple Macintosh computer, but was removed in both the Mac and later versions of the Lisa in favor of the 3 + 1 ⁄ 2-inch floppy disk from Sony. The drives were notoriously unreliable and Apple was criticized for needlessly diverging from industry standards.
A floppy-disk controller (FDC) is a hardware component that directs and controls reading from and writing to a computer's floppy disk drive (FDD). It has evolved from a discrete set of components on one or more circuit boards to a special-purpose integrated circuit (IC or "chip") or a component thereof.
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 ...
Tandy Portable Disk Drive (aka Brother FB-100, knitking FD-19) 3 1 ⁄ 2 inch Single 1 80 2 1,280 200 kB [29] FM Used only in Tandy Portable Disk Drive 2 5 1 ⁄ 4 inch Double 1 35 18 256 157 kB [30] MFM Color Computer HP 9114A 3 1 ⁄ 2 inch Double 2 80 16 256 128-710kB [31] 600 MFM Used with HP 110 and Portable Series 40 & 70 HP 9895A 8 inch ...
As a result, early floppy drives required jumpers to be set on the drive to tell it which controller commands it should receive. When introducing the PC, IBM sliced the cable between the first and second drive, and twisted seven of the conductors, effectively flipping the four conductors which specifically addressed the first or second drive.
A disk drive is a device implementing such a storage mechanism. Notable types are hard disk drives (HDD), containing one or more non-removable rigid platters; the floppy disk drive (FDD) and its removable floppy disk; and various optical disc drives (ODD) and associated optical disc media.
The Olivetti P6060 was the first personal computer with a built-in floppy disk. It was presented in April 1975 by the Italian manufacturer Olivetti at the Hannover fair alongside the smaller P6040 that stored data on proprietary 2.5-inch mylar floppies called Minidisk (3 KB).