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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 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 ...
Before phones were pocket-sized supercomputers, people had to stop if they wanted to make calls on the go. ... of the 1980s — it was the same year Sony stopped making 3.5-inch floppy disks ...
[28] [29] Cassettes were popular for another 1 1 ⁄ 2 years, before floppy disks took over. [30] The Altair's S-100 bus eventually becomes the first de facto standard microcomputer expansion bus, as by April 1980 there were probably over 200,000 installed S-100 systems, more than TRS-80, PET and Apple II systems. [31]
Why the save button icon is a floppy disk ... They don’t really understand that computers came long before the internet, and that forms of the internet came long before people think it did (like ...
IBM manufactured magnetic disk storage devices from 1956 to 2003, when it sold its hard disk drive business to Hitachi. [1] [2] 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. [3]
Upon the basis of the Juusyoku Record patent issued in 1952, Nakamatsu claims to have invented the first floppy disk [3] well before IBM's floppy disk patent was filed in 1969. [26] However, what Nakamatsu patented in 1952 was a paper for optical sound player. [ 12 ]