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8" Disk - The first disk was introduced in 1971. The disk was 8" in diameter with a magnetic coating, enclosed in a cardboard case with the capacity of one ... First, the top left of the back of the floppy there is a small tab. This tab enables the floppy disk to be switched from write protected and un-write protected.
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www.computerhope.com/help/floppy.htm
www.computerhope.com/help/floppy.htm
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8" Disk - The first disk was introduced in 1971. The disk was 8" in diameter with a magnetic coating, enclosed in a cardboard case with the capacity of one megabyte. Conversely to hard disks, the heads actually touch the disk, like in a cassette or video player that ... Also see: Floppy definitions, Floppy disk drive...
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www.computerhope.com/jargon/f/floppydi.htm
www.computerhope.com/jargon/f/floppydi.htm
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Early IBM disk storage - Wikipedia, the free encyclopedia
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The invention of magnetic disk storage, pioneered by IBM in the 1950s, was a critical component of the computer revolution. This article describes some (but not all) of the disk drives introduced by I...
en.wikipedia.org/wiki/Early_IBM_disk_storage
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Floppy disk - Wikipedia, the free encyclopedia
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A floppy disk is a data storage medium that is composed of a disk of thin, flexible ("floppy") magnetic storage medium encased in a square or rectangular plastic shell. Floppy disks are read and wri...
en.wikipedia.org/wiki/Floppy_disk
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According to Red Book specifications, a standard CD is 120 mm (4.75 inches) in diameter and 1.2 mm (0.05 inches) thick and is composed of a polycarbonate plastic substrate (underlayer - this is the main body of the disc), one or more thin reflective metal (usually aluminum) layers, and a lacquer coating.
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searchstorage.techtarget.com/sDefinition/0,,sid5_gci503...
searchstorage.techtarget.com/sDefinition/0,,sid5_gci503642,00.html
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I was never able to pinpoint the exact diameter and gauge of the jump rings, experiment with different sizes. I purchased 200 which left me some to screw up with and a few spares. ... Floppy Disk Pen Holder; This is my first instructable so I will do my best. Recycle your old floppy disks … by completegeek;
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www.instructables.com/id/Floppy-Disk-Bag/
www.instructables.com/id/Floppy-Disk-Bag/
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1952: IBM introduces the first magnetic tape drive for on-line data storage, the 726. It used 8" diameter reels of tape holding about 1 Megabyte, or the contents of about 12,500 punch cards. IBM was producing 16 Billion punch cards per year in 1952. ... 1967: IBM built the first floppy disk drives (8" SSSD, 256K).
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www.aaxnet.com/info/hist.html
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Present-day floppy disks, widely used on microcomputers, are 8.8 cm/3.5 in in diameter, and generally hold up to 2 megabytes, depending on the disk formatting. ... Wozniak also designed the interface that allowed those early computers to use the first commercially produced floppy disk drives.
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encyclopedia.farlex.com/Floppy+Disk+drives
encyclopedia.farlex.com/Floppy+Disk+drives
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Insofar as we are aware, we are the first to devise a floppy disk canister which is useful in storage and shipment, and which is additionally constructed and arranged for ... This canister may be designed to hold any size floppy disk--for example disks of eight, five and one-quarter, or four-inch diameter.
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www.freepatentsonline.com/4516678.html
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