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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.
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 ...
A pair of 5.25" floppy disks from 1978. In 1969, the first digital-grade tape cassettes were released. [citation needed] 8" diskettes were first released in 1974. In 1991, Verbatim released the world's first 3.5" magneto-optical disk. Verbatim started its successful foray into the optical disc market in 1993 with CD-R media.
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 ...
Among the groups reporting to Shugart was the team that invented the floppy disk. Shugart joined Memorex in 1969 as Vice President of its Equipment Division and led the development of its 3660 (compatible with IBM 2314) and 3670 (compatible with IBM 3330) disk storage subsystems. His team also developed the Memorex 650, one of the first ...
The Commodore 1541 (also known as the CBM 1541 and VIC-1541) is a floppy disk drive which was made by Commodore International for the Commodore 64 (C64), Commodore's most popular home computer. The best-known floppy disk drive for the C64, the 1541 is a single-sided 170-kilobyte drive for 5¼" disks.
STORY: (Tim Persky, Floppy disk seller)"If you think this is old, take a look at this. This is a floppy disk from the 1970s."This man is believed to be the world's last known bulk supplier of ...
However, by the late 1980s, hard disk drives were standard on all but the cheapest PC and floppy disks were used almost solely as transport media. Most hard disk drives in the early 1980s were sold to PC end users by systems integrators such as the Corvus Disk System or the systems manufacturer such as the Apple ProFile.