Secure Digital Cards: Compact Data Storage And Transfer Solution

By Author: Harry Spencer
Total Articles: 20
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In the age of digital electronics, memory cards are changing the way we store and transfer data. Day by day SD cards are finding increased usage in mobile phones, cameras, camcorders, GPS navigation devices and gaming devices. The compactness of SD memory card make it the ideal choice for digital component manufacturers to use SD card based storage platforms to store and transfer images, music, video and other data.

The SD memory card comes in various capacities and transfer speeds and faster transfer speeds are associated with the capacity of the SD memory. These days, cell phones which come loaded with multimedia features with ability to capture photos and videos, are selling fast than the less endowed models. Some newer computers have a card reader built into the system, or an inexpensive external card reader can be purchased. Since there are many different types of flash memory cards, be sure the card reader is made for the SD memory card, or capable of reading various formats.

The type of memory card you use is dictated by which cell phone or digital camera you use and one feature of all the high end models ...
... is its amount of expandable memory space with SD Cards. The different types of flash memory cards for use in digital cameras are Secure Digital (SD), CompactFlash (CF), MultiMediaCard (MMC) xD-Picture Card (xD) and SmartMedia (SM) card. Most cell phones make use of miniSD cards. Being one of the smallest available flash cards in the market, these miniSD cards are meeting fast expanding needs of the consumer or the end user in a big way.

The memory and storage capabilities of the SD cards are getting bigger and faster with most SD cards manufacturers offering up to 32 with increase in reading and writing speeds of up to 150x speed and more. Most SD cards work on preformatted FAT or FAT 32 file system which allows the card to be accessed with just an SD reader which can be connected to any output or input. When shooting digital photographs, the performance of the memory card can be critical issue, that could have an effect on the number of shots and also on the writing quality.

This is more visible while shooting in continuous shooting mode or burst mode. To support continuous shooting at 3 fps or more the SD card should be capable of writing at high speeds, so that there is no time lost between one shot and the other. High-Capacity SD cards are equipped to handle higher data transfer rates and have speeds of 200x or higher.

For added reliability and durability, most CD memory cards have no moving parts that could wear out or break. All branded SD cards available in the market are 100-percent tested and free live technical support. There is also a new kind of SD card called the SDHC cards which are differently designed, these SDHC can be read by SDHC host devices.

Starting at 4GB, SDHC cards offer larger-volume data storage and optimized recording performance with support for FAT 32 file formats. SDHC cards use new class rating for speed that deliver a minimum data transfer rate for optimum performance with SDHC devices.

The author of this article has great knowledge about Memory cards . He has written many articles on Secure Digital Cards. This article is an excellent example for his knowledge.