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Pinnacle Micro was a major manufacturer of magneto-optical drives. 3.5" drives were 128 MB and 230 MB. 5.25" drives produced were 650 MB and 1.3 GB (Sierra), 2.6 GB (Vertex) and 4.6 GB (Apex). The Vertex and Apex were non-ISO standard drives and used proprietary media. Pinnacle Micro has ceased production of these products.
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 ...
6.5 MB [11] 5 1 ⁄ 4 inch Apple FileWare Double 2 80 62.5 soft 851 kiB [12] 8 inch: Single 77: 48: 3,268-3,408 soft or hard (inner edge) 300 Oe: 1 MB Double 6,816 1 MB HD [13] 154 96 20,560 600 Oe 9.6 MB [14] 8 inch Memorex FD 650 1 [15] 50 [15] 2,400 hard (outer edge) 1.5 Mb [15] 651 64 [16] 3,100 2.5 Mb [16] [17] 8 inch Burroughs Double 2 ...
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 ...
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 ...
Media technologies vary, for example, M-DISC media uses a rock-like layer to retain data for longer than conventional recordable media. While being read-only compatible with existing DVD and Blu-ray drives, M-DISC media can only be written to using a stronger laser specifically made for this purpose, which is built into fewer optical drive models.
The original Zip drive has a maximum data transfer rate of about 1.4 MB/s (comparable to 8× CD-R; although some connection methods are slower, down to approximately 50 kB/s for maximum-compatibility parallel "nibble" mode) and a seek time of 28 ms on average, compared to a standard 1.44 MB floppy's effective ≈16 kB/s and ≈200 ms average ...
Writing a DVD at 1× (1 385 000 bytes per second) [5] is approximately 9 times faster than writing a CD at 1× (153 600 bytes per second). [6] However, the actual speeds depend on the type of data being written to the disc. [6] For Blu-ray discs, 1× speed is defined as 36 megabits per second (Mbit/s), which is equal to 4.5 megabytes per second ...
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