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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 ...
By 1988, the 3 + 1 ⁄ 2-inch was outselling the 5 + 1 ⁄ 4-inch. [69] In South Africa, the 3 + 1 ⁄ 2-inch format was generally called a stiffy disk, to distinguish it from the flexible 5 + 1 ⁄ 4-inch format. [70] [71] The term "3 + 1 ⁄ 2-inch" or "3.5-inch" disk is and was rounded from the 90 mm actual dimension of one side of the ...
5 1 ⁄ 4 inch High 2 77 8 1,024 1,232 kB [NB 11] 360 MFM 3 1 ⁄ 2 inch SHARP CE-1600F, CE-140F: 2 1 ⁄ 2 inch [2] [3] Single drive: 1, diskette: 2 16 8 512 2× 64 kB 270 GCR (4/5) Internally based on FDU-250 Micro Floppy Disk Drive Unit [2] Thomson: 5 1 ⁄ 4 inch Single 1 40 16 128 80 kB 300 FM Thomson UD90.070 Double 2 256 320 kB MFM
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 ...
Variables included the size of media (nominal 8-inch, 5 + 1 ⁄ 4-inch, 3 + 1 ⁄ 2-inch and others), encoding of data on the media (FM, MFM, M²FM, GCR), the number of disk tracks, one or two sides, the number of sectors in each track, and hard- or soft-sectoring. Even media that was physically interchangeable between two systems might not ...
These games were distributed on 5 + 1 ⁄ 4" or, later, 3 + 1 ⁄ 2", floppy disks that booted directly, meaning once they were inserted in the drive and the computer was turned on, a minimal, custom operating system on the diskette took over.
Floppy Disks 1981-1998 Although Sony would continue to sell them in Japan for another 12 years, the floppy disk — with its massive 1.44 MB of storage — received a fatal blow in 1998.
8-, 5.25-, 3.5-, 2.5-, 1.8- and 1-inch HDDs, together with a ruler to show the length of platters and read-write heads A newer 2.5-inch (63.5 mm) 6,495 MB HDD compared to an older 5.25-inch full-height 110 MB HDD. IBM's first hard drive, the IBM 350, used a stack of fifty 24-inch platters and was of a size comparable to two large refrigerators.
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