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2 GB Slim and small (20 mm × 25 mm × 1.78 mm) but slower read/write, no wear-leveling controller, up to 2 GB [8] Type H 2005 2 GB Slim and small (20 mm × 25 mm × 1.78 mm) and swifter, no wear-leveling controller, up to 2 GB [8] XQD card: Sony & Nikon Standard 2011–2012 >2 TB High-capacity, high-speed standard using PCIe as interface
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.
As of September 2009, 2 GB (2000 MB) xD cards' retail prices are approximately three times those of same-capacity SD cards. Many newer Olympus and Fujifilm digital cameras accept the more popular SD or CF cards, in addition to or instead of the xD format. Small maximum capacity relative to other memory card formats.
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 ...
CompactFlash cards for use in consumer devices are typically formatted as FAT12 (for media up to 16 MB), FAT16 (for media up to 2 GB, sometimes up to 4 GB) and FAT32 (for media larger than 2 GB). This lets the devices be read by personal computers but also suits the limited processing ability of some consumer devices such as cameras .
Comparison of a 2 GB microSD card and an 8 MB 3.3 V SmartMedia card. Typically, SmartMedia cards were used as storage for portable devices, in a form that could easily be removed for access by a PC. For example, pictures taken with a digital camera would be stored as image files on a SmartMedia card. A user could copy the images to a computer ...