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Our online glossary is here to help you make sense of the terminology used in the cell phone industry. It covers mobile technologies, such as 3G and 4G, and even includes a bit of information on smartphone operating systems and the companies that make the cell phones and other mobile technology devices we all use.

What is "MMC"?

MultiMediaCard is a flash memory card format introduced in the late 1990s. It is the precursor of the much more popular SD card. It is not used often today.

Also known as: "MultiMediaCard"

See Also: SD

Referred to by: RS-MMC

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