Smart Media Cards Key Terms

Discover the meanings of smart media cards key terms

Smart media cards are used in cell phones, digital cameras, camcorders and even some car stereos. These cards hold pictures, music and any other form of media. Smart media cards are an easy way to save and transfer media files from one device to another. The vast amount of types of smart media cards can be overwhelming. Learning the meanings of smart media cards key terms will assist you in finding the cards you need quickly and efficiently.

SDHC

SDHC, or secure digital high capacity cards, use flash memory to enhance the capacity of the card. A SDHC card can hold 4GB to 32GB of memory. Most SDHC cards and SD cards are interchangeable.

Micro SD

Micro SD cards are 5mm by 11mm in size and are generally used in mobile phones. These smart media cards use flash memory and can be used in a computer with an adapter.

Mini SD

Mini SD cards are 21.5 by 20 by 1.4 mm in size and hold between 16 MB and 256 MB of information. Mini SDs use flash memory and are compatible with many card readers.

XD

XD, or xD, picture cards are Extreme Digital picture cards. These cards can hold up to 512MB. The cards are have fast processing and high quality outputs.

Flash memory card

A flash memory card is a smart media card that uses flash memory to save information. Flash memory uses flash technology instead of the mechanical technology used in hard drives and other memory devices. Flash memory does not require power to maintain the information stored on the card.

MLC chips

MLC chips, or Multi-Level Cell chips, are the most common chip used in SD cards. These chips use flash memory and store bits of information on three or more cells. This slows the speed of the card, however cards with MLC chips are normally less expensive than other cards.
TheCAT has more information about multi-level cell technology. CBS Interactive also provides information about MLC chips.

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