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SD card is a proprietary, non-volatile, flash memory card format for portable devices, such as digital cameras and mobile phones. Learn about the creation, introduction, and evolution of SD card and its variants, such as miniSD, microSD, SDHC, SDXC, and SDUC.
In 2000 the SD card was announced. SD was envisioned as a single memory card format for several kinds of electronic devices, that could also function as an expansion slot for adding new capabilities for a device. [21] In 2001, SmartMedia alone captured 50% of the digital camera market and CF had captured the professional digital camera market.
The SD Association (SDA) is an American organization that sets standards for the SD memory card format. Learn about the history, specifications, and features of SD cards, from SD v1.01 to SD 7.0 and microSD Express.
Etcher (now balenaEtcher) is a cross-platform utility for writing image files to SD cards and USB flash drives. It supports .iso, .img and zipped folders, and has a graphical and command line interface.
exFAT is the official file system of SDXC cards. Because of this, any device not supporting exFAT, such as the Nintendo 3DS, may not legally advertise itself as SDXC compatible, despite supporting SDXC cards as mass storage devices by formatting the card with FAT32 or a proprietary file system tied to the device in question.
Disk formatting is the process of preparing a data storage device for initial use, which may involve low-level, partitioning and high-level formatting. Learn about the history, techniques and variations of disk formatting for different types of disks and file systems.
However the SD card, jointly developed by Toshiba, Panasonic and SanDisk, became widely popular among companies and soon became the most popular flash format – by November 2003 it held 42% market share in the United States, ahead of CompactFlash's 26% and Memory Stick with 16%. [7]
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.