Memory Card
Transcript: is a non-volatile memory card format for use in portable devices, such as mobile phones, digital cameras, GPS navigation devices, handheld consoles, and tablet computers. The Secure Digital format includes four card families available in three different form factors. The four families are the original Standard-Capacity (SDSC), the High-Capacity (SDHC), the eXtended-Capacity (SDXC), and the SDIO, which combines input/output functions with data storage. The three form factors are the original size, the "mini" size, and the "micro" size. Electrically passive adapters allow the use of a smaller card in a host device built to hold a larger card. Memory Card Memory Stick is a removable flash memory card format, launched by Sony in October 1998,and is also used in general to describe the whole family of Memory Sticks. In addition to the original Memory Stick, this family includes the Memory Stick PRO, a revision that allows greater maximum storage capacity and faster file transfer speeds. The Memory Stick Micro (M2) measures 15 × 12.5 × 1.2 mm (roughly one-quarter the size of the Duo) with 64 MB, 128 MB, 256 MB, 512 MB, 1 GB, 2 GB, 4 GB, 8 GB, and 16 GB capacities available. CompactFlash (CF) is a mass storage device format used in portable electronic devices. The format was first specified and produced by SanDisk in 1994. It is now used for a variety of devices; most contain flash memory but some, such as the Microdrive, contain a hard disk. CompactFlash remains popular and is supported not only in many high end consumer devices, but in some professional applications as well. As of 2012, both Canon and Nikon use CompactFlash as storage medium for their flagship digital still cameras. Secure Digital PC Cards (PCMCIA) were among first commercial memory card formats (type I cards) to come out in the 1990s, but are now mainly used in industrial applications and to connect I/O devices such as modems. In the 1990s, a number of memory card formats smaller than the PC Card arrived, including CompactFlash, SmartMedia, and Miniature Card. The desire for smaller cards for cell-phones, PDAs, and compact digital cameras drove a trend that left the previous generation of "compact" cards looking big. In digital cameras SmartMedia and CompactFlash had been very successful. Micro sd and micro sdhc The Secure Digital High Capacity (SDHC) format, announced in January 2006 and defined in Version 2.0 of the SD specification, supports cards with capacities up to 32 GB. The SDHC trademark is licensed to ensure compatibility. SDHC host devices are required to accept older SD cards. However, older host devices do not recognize SDHC or SDXC memory cards, although some devices can do so through a firmware upgrade. Older Windows operating systems released before Windows 7 require patches or service packs to support access to SDHC cards. Secure Digital High Capacity (SDHC) Secure Digital Memory Card Conclusion Brief History Compact Flash Memory Stick, and Memory Stick Micro (M2). In March 2003, SanDisk Corporation announced the introduction of the miniSD and demonstrated it at CeBIT 2003.[38] The SDA adopted the miniSD card in 2003 as a small form factor extension to the SD card standard. While the new cards were designed especially for mobile phones, they are usually packaged with a miniSD adapter that provides compatibility with a standard SD memory card slot. It's capacities in excess of 2 GB and a minimum sustained read and write speed of 17.6 Mbit/s) microSD and microSDHC Memory Stick, and Memory Stick Micro (M2). In 2001, SM alone captured 50% of the digital camera market and CF had captured the professional digital camera market. By 2005 however, SD/MMC had nearly taken over SmartMedia's spot, though not to the same level and with stiff competition coming from Memory Stick variants, as well as CompactFlash. In industrial and embedded fields, even the venerable PC card (PCMCIA) memory cards still manage to maintain a niche, while in mobile phones and PDAs, the memory card market was highly fragmented until 2010 when micro-SD came to dominate new high-end phones and tablet computers. Memory cards enable mobile users easily to transport digital photos, music, or files to and from mobile devices and computers or other devices. As mentioned in Chapter 4, a memory card is a removable flash memory device, usually no bigger than 1.5 inches in height or width, that you insert and remove from a slot in a computer, mobile device, or card reader/writer. A memory card or flash card is an electronic flash memory data storage device used for storing digital information. They are commonly used in many electronic devices, including digital cameras, mobile phones, laptop computers, MP3 players and video game consoles. Secure Digital High Capacity
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