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  2. List of floppy disk formats - Wikipedia

    en.wikipedia.org/wiki/List_of_floppy_disk_formats

    5 1 ⁄ 4 inch Double 2 80 21 256 840 kB 300 MFM [NB 1] Amstrad CPC/PCW: 3 inch Double 1 40 9 512 180 kB 300 MFM Single head drive, but double-sided floppy discs (total of 360 kB per floppy) Amstrad PCW8512/9512: 3 inch Double 2 80 9 512 720 kB 300 MFM 720 kB mode uses both sides - ensure disc inserted correct way up. Apple II: 5 1 ⁄ 4 inch ...

  3. Compact Video Cassette - Wikipedia

    en.wikipedia.org/wiki/Compact_Video_Cassette

    The CVC format used a cassette similar in size to a 8-mm videocassette and was loaded with magnetic tape 6.5 mm wide. Unlike most other video cassette formats that enclose reels with flanges, the CVC cassette employed tape hubs without flanges similar to compact cassette, which made the design more space-efficient. Initially only V30 tapes were ...

  4. File Allocation Table - Wikipedia

    en.wikipedia.org/wiki/File_Allocation_Table

    While 86-DOS supported three disk formats (250.25 KB, 616 KB and 1232 KB, with FAT IDs 0xFF and 0xFE) on 8-inch (200 mm) floppy drives, IBM PC DOS 1.0, released with the original IBM Personal Computer in 1981, supported only an 8-sector floppy format with a formatted capacity of 160 KB (FAT ID 0xFE) for single-sided 5.25-inch floppy drives, and ...

  5. Floppy disk - Wikipedia

    en.wikipedia.org/wiki/Floppy_disk

    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. HD DVD - Wikipedia

    en.wikipedia.org/wiki/HD_DVD

    There are two types of hybrid formats which contain standard DVD-Video format video for playback in regular DVD players, and HD DVD video for playback in high definition on HD DVD players. The Combo disc is a dual sided disc with one side DVD and the other HD DVD, each of which can have up to two layers.

  7. Betamax - Wikipedia

    en.wikipedia.org/wiki/Betamax

    The first Betamax VCR introduced in the United States was the LV-1901 model, which included a 19-inch (48 cm) Trinitron television, and appeared in stores in early November 1975. The cassettes contain 0.50-inch-wide (12.7 mm) videotape in a design similar to that of the earlier, professional 0.75-inch-wide (19 mm), U-matic format. [citation needed]

  8. exFAT - Wikipedia

    en.wikipedia.org/wiki/ExFAT

    The exFAT format allows individual files larger than 4 GB, facilitating long continuous recording of HD video, which can exceed the 4 GB limit in less than an hour. Current digital cameras using FAT32 will break the video files into multiple segments of approximately 2 or 4 GB. EFS supported in Windows 10 v1607 and Windows Server 2016 or later.

  9. Ampex - Wikipedia

    en.wikipedia.org/wiki/Ampex

    They wrote the video vertically across the width of a tape that was 2 inches (51 mm) wide and ran at 15 inches (38 cm) per second. This allowed hour-long television programs to be recorded on one reel of tape. In 1956, one reel of tape cost $300; and Ampex advertised the cost of the recorder as $45,000. [20]