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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 ...
However, what Nakamatsu patented in 1952 was a paper for optical sound player. [12] In contrast to a floppy disk, this Nakamatsu patent discloses the use of printed paper for storage instead of the magnetic material of a floppy disk. It is not rewritable and lacks most elements of the IBM floppy disk patent.
“We were setting up Office 95 installed off floppy disks, 3-1/4-inch box of 50 diskettes,” he said. “We had to basically load all the software manually.” Director of information technology
The earliest use of paper to store instructions for a machine was the work of Basile Bouchon who, in 1725, used punched paper rolls to control textile looms. This technology was later developed into the wildly successful Jacquard loom. The 19th century saw several other uses of paper for controlling machines.
Floppy disks flop for the last time You can officially move your old computer floppy disks to your obsolete file, since Sony has announced plans to discontinue selling them in Japan in March 2011 ...
Here's a look at some of the major events that took place in the world the same year that AOL started. ... 1985 — Compact discs become mainstream. The first compact discs were stamped off the ...
It was in competition with a similar product by IBM that had an external floppy disk drive. The assembly line was located in the Olivetti factories of Scarmagno , some modules forming subsets of the machine as a printer or floppy disks were manufactured at plants in San Bernardo d'Ivrea .