Memory cards mainly include things like MMC card, SD card, memory stick, PCIe flash memory card, XQD card, CF card, XD image card, SM card, M2 card, etc.
MMC card (MultimediaCard) is translated into 'multimedia card'. Is a flash memory card typical. Primarily aimed at digital images, music, mobile phones, PDAs, e-books, toys and also other goods, its size is only 32mm × 24mm × 1.4mm, plus the weight is only 1.five grams. Even so, because of the lack of assistance from consumer digital makers, there are actually not many items that could use MMC memory cards in the digital item market place.
The SD card (SecureDigital) is jointly created by Panasonic, Toshiba and SanDisk in Japan. The size is 32mm × 24mm × two.1mm plus the weight is only 2 grams. The structure on the SD card can ensure the security of digital file transmission, and it can be also uncomplicated to reformat, so it has a wide array of applications. Many digital cameras use SD as a storage medium. This also tends to make the SD card the most extensively employed memory card.
MiniSD is developed from an SD card, and its performance just isn't a great deal different from a regular SD card. Like the SD card, the MiniSD card has a hardware data create protection switch to prevent the danger of accidental deletion of stored content material. On the other hand, the size with the MiniSD card is extra compact, only 21.5mm × 20mm × 1.4mm, which can be 40% significantly less than the SD card. It may be used using a specific adapter card and is fully compatible with common SD card slots. On the other hand, the most essential point is that the MiniSD card makes use of a low power consumption design and style, so it's extra appropriate for mobile communication devices than the SD card. At present, it can be mainly applied in information terminal devices including mobile phones, PDAs, and handheld computers.
TF card, also referred to as T-Flash card, full name: TransFLash (aka: MicroSD), can be a really compact flash memory card, jointly developed by Motorola and SANDISK. It has the positive aspects of becoming little and active, primarily applied in mobile phones, but using the increasing capacity, it gradually started to become employed within a wider region. In the similar time, it can also be connected to an SD card slot with an adapter and includes a significant capacity. The full name on the memory stick is MemoryStick, that is a mobile storage medium developed by Sony Corporation in Japan. This storage device looks like chewing gum, and has and features a very higher compatibility. Later, Sony lowered the volume to about 1/3 depending on the memory stick, and made and manufactured the memory stick Duo. This memory stick Duo is extremely easy to be utilised in rather small mobile phones and digital cameras, as well as numerous mp3 players as well as other electronic products.
PCI-e flash memory card (PCI-Express) could be the newest bus and interface normal. unreadable usb was '3GIO'. PCIe is often a high-speed serial point-to-point dual-channel high-bandwidth transmission. The connected devices are allocated exclusive channel bandwidth. Shared resources, mainly supporting functions for example active power management, error reporting, end-to-end reliability transmission, hot swap and high-quality of service (QOS). The principle is according to NAND flash memory.
SM (SmartMedia) card is actually a type of micro memory card, that is comparable to SD card. Published by Toshiba Corporation in November 1995. SmartMedia utilizes a 22-pin interface and makes use of a physical format plus a logical format. The physical format ensures the compatibility between distinct device models, which the technique and manage vendors should obey. The physical format is based on the FAT requirements of ATA and DOS files, to create it less difficult to exchange information involving unique systems, however the physical format configuration will vary in web page size, depending on the type of memory plus the capacity with the memory card. As for the logical format, the DOS-FAT format is adopted, that is certainly, the cylinder head sector parameters, the key sector, as well as the partition. SmartMedia also has two functioning voltages of three.3V and 5V, but it cannot assistance both voltages in the identical time. However, you will find no solutions that use SM memory cards within the digital cameras launched nowadays. CF card (CompactFlash) was originally a information storage device for portable electronic devices. As a storage device, it revolutionaryly makes use of flash memory. It was 1st produced by SanDisk Corporation in 1994 and established relevant specifications. At the moment, its physical format has been adopted by lots of devices. Nevertheless, the capacity of your CF card is limited, and its capacity cannot preserve up using the improvement of digital camera pixels. Compared with other types of memory cards, the volume is reasonably huge. Additionally, recover damage usb stick operating temperature is generally 0-40 degrees Celsius, which limits its performance.
XQD memory card is a sort of memory card developed by Sony. Its volume is considerably smaller than the existing CF card, only about half its size. Even so, the XQD memory card retains the CF card for rapid and stable reading. Furthermore, the XQD memory card also uses an upgradeable high-performance interface. Its reading and writing speed reached 125 megabits per second.
The XD-PictureCard (xD) card is usually a memory card jointly launched by Olympus and Fuji. It has an really compact kind aspect, with an external size of 20mm × 25mm × 1.7mm plus a weight of only two grams. Its reading and writing speed can attain 5MB / S and 3MB / S. The earliest XD card was primarily made use of in Olympus and Fuji digital camera goods. While its performance can meet the large information volume as well as the energy consumption is reduced, the comparatively higher cost considerably limits the development on the XD card. At present, Olympus and Fuji digital cameras no longer only use XD cards as storage media. The M2 card is really a new memory card MemoryStickMicro (M2) jointly launched by Sony and SanDisk, which was launched in March 2006. This M2 card uses ultra-small circuit design and style, particularly for large-capacity, small-volume mobile storage demands, weighing only 16 grams, the external dimensions are only 15 × 12.five × 1.2mm, the volume is about a quarter of the memory stick ProDuo.
Comments