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  2. SD card - Wikipedia

    en.wikipedia.org/wiki/SD_card

    Unlocked and locked SD cards Sony 64 GB SF-M Tough Series UHS-II SDXC Memory Card is one of the few cards in the market without a sliding tab on the write protect notch. Most full-size SD cards have a "mechanical write protect switch" allowing the user to advise the host computer that the user wants the device to be treated as read-only.

  3. Memory card - Wikipedia

    en.wikipedia.org/wiki/Memory_card

    The basis for memory card technology is flash memory. [2] It was invented by Fujio Masuoka at Toshiba in 1980 [3] [4] and commercialized by Toshiba in 1987. [5] [6] The development of memory cards was driven in the 1980s by the need for an alternative to floppy disk drives that had lower power consumption, had less weight and occupied less ...

  4. Solid-state drive - Wikipedia

    en.wikipedia.org/wiki/Solid-state_drive

    SSDs based on an SD card with a live SD operating system are easily write-locked. Combined with a cloud computing environment or other writable medium, an OS booted from a write-locked SD card is reliable, persistent and impervious to permanent corruption.

  5. The Best SD (And Other) Memory Cards For Photography - AOL

    www.aol.com/news/best-sd-other-memory-cards...

    Memory card tech has advanced more slowly than the explosion of new features we’ve seen in mirrorless cameras in recent years, but it has improved from the early days. New, faster formats ...

  6. Comparison of memory cards - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_memory_cards

    PS Vita Memory Card 2012 64 GB Subcompact (15 mm × 12.5 mm × 1.6 mm [7]), compulsory DRM, up to 64 GB, proprietary (can be used on PS Vita only) P2 (storage media) Panasonic MicroP2: 2012 64 GB MicroP2 is a SDXC/SDHC card conforming to UHS-II (Ultra High Speed bus), and can be read by common SDHC/SDXC card readers. xD: Olympus, Fujifilm, Sony

  7. Write once read many - Wikipedia

    en.wikipedia.org/wiki/Write_once_read_many

    The SD card and microSD card spec allows for multiple forms of write-protection. The most common form, only available when using a full-size SD card, provides a physical write protection switch which allows the user to advise the host card reader to disallow write access.

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