
SecuredDigital Card (SD Card)
With
booming demand for personal electronics gadgets, demand for flash memory card
is also growing exponentially. Companies are releasing newer versions of memory
cards every alternate day with increased application features and storage
capacity. The SecuredDigital Card (SD Card) is probably the most popular of
memory cards available in the market. It was developed in the year 1999 by
Panasonic, Scandisk and Toshiba based on older MMC format and it uses NAND flash technology. Like MMC cards, SD Cards also use the 32x24mm form
factor and is in solid for and can withstand extreme temperature and a fall
from about 10 feet high. The tiny card offers some powerful features. SD cards
support host of applications and can link very easily to any digital device
that requires a flash memory card through its easy connectivity. It also has
greater transfer rate than other memory cards though it supports encryption and
content protection.
Main
features of SD Card
Large
Capacity: Modern activities demand huge storage capacity. SD Cards have greater
storage space or capacity than most other cards.
Ultra Fast
Transfer Rate: When everybody is in a hurry time matters and SD memory cards
have the best data transfer rate available in the market.
Compact
Design and compatibility: SD cards have compact design and so are very easy to
use. They are also compatible with most of the personal electronic gadgets like
digital music player, digital camera, gaming console, PDAs. One just need a
memory card reader and a connection port like Universal Serial Bus (USB)
connect it to the device for use. Some SD Card readers have built in connection
feature like USB. It also supports lots of software applications. One just need
a decoder software in order to access the videos, songs, photos and other data
stored in the card. SD
Card can be found in miniature variations as well - the miniSD introduced in
2003 and the microSD introduced in 2005. Electrically, as well as software
compatible, miniSD and microSD cards fit into a regular SD slot via an adapter.
Secured:
Unlike MMC cards, SD cards have a locking system which allows a user to
manually lock access to the card. It protects the data stored in it against any
accident. The card also has a copyright protection policy whereby only licensed
products can be written on it.
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