Memory Cards and their use

Memory Cards are NAND Flash memory type chips that are available in extremely small dimensions. There are different classes of memory cards based upon the size and speed of the memory. The memory cards are commonly used in many devices like mobile phones, laptops, portable music players, digital cameras and camcorders and many video game consoles.

Some of the different types of memory cards include sd memory cards, sdhc memory card, MMC etc. SD stands for secure digital and is a standard memory card module for use in most of the mobile phones and laptop computers.

MicroSD is a miniature variant of SD cards and SDHC is a high speed memory card for use in demanding devices like digital SLR cameras which have the need to store a large amount of data in a short amount of time.

There are different classes of SD cards according to the read or write speeds. Solid state memory card devices are also used in many gaming consoles which allow for the graphic games to initiate. There are card readers available for reading the memory card data in a personal computer.

About SD Card

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SD (Secure Digital) card is about the size of a postage stamp and weights approximately two grams. SD card looks similar in size to a Multi Media Card but is smaller than older memory card types such as the Smart Media card and the Compact Flash card. SD cards are available with storage capacities as high as 4 gigabytes. The SD card was jointly developed by Matsushita, SanDisk, and Toshiba. The SD technology is used by more than 400 brands across dozens of product categories and more than 8,000 models, and is considered the de-facto industry standard. SD cards are more rugged than traditional storage medias. SD adapters allow the physical conversion of smaller SD cards to work in a larger physical slot, and basically are passive devices that connect the pins from the smaller SD card to the pins of the larger SD adapter.