MultiMediaCard (MMC) is a tiny memory card that uses flash memory to make storage portable among various devices.

ROM used in such devices as car radios, cell phones, digital cameras, PDAs, MP3 players, and printers.

Today, there are various variations and sizes of the MMC card such as the MMCP (MMCplus) and MMCM (MMCmobile / MMCmicro).

Like SD and CF cards, MultiMediaCards are much more rugged than traditional storage media.

All three cards have an operating shock rating (basically, the height you can drop them from and still have them work) of 2,000 Gs.

Compared to a 100-200 G rating for the mechanical drive of the typical portable computing device.

This translates to a drop to the floor from 10 feet, as compared to a single foot for the mechanical disk drive.

Both MultiMediaCard (MMC) and SD cards use metal connector contacts, instead of the traditional pins-and-plugs.

So they aren’t as prone to damage during handling.

MMC, like SD, features encryption capabilities for protected content, to ensure secure distribution of copyrighted material.

Such as digital music, video, and eBooks. The MMC Association (MMCA), whose members.

Include Hewlett-Packard, Hitachi, Nokia, Sanyo, Siemens, and Palm, is dedicated to the promotion of MMC as an open global standard.

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