Backup Software > Backup Terms Glossary > RS-MMC

RS-MMC

MMC cards also come in a smaller form factor, of about half the size: 24mm x 16mm x 1.5mm. This alternate form factor is known as Reduced-Size Multi-Media Card, or RS-MMC, and was introduced in 2004. RS-MMC cards are simply smaller MMC cards; by using a simple mechanical adapter to elongate the card, an RS-MMC card can be used in any MMC (or SD) slot.

The only significant hardware licensor of RS-MMC cards is Nokia, who often uses RS-MMC in their Series 60 Symbian smartphones. Newer RS-MMC cards, used in Nokia's newer phones (like the Nokia 6630 and Nokia 6680), support a lower voltage (1.8 V instead of 3 V) mode to reduce battery demand, and these lower-voltage RS-MMC cards, known as Dual Voltage Reduced Size MMC, and can be marketed as MMCmobile when they meet the MMCmobile card standards. These low-voltage cards are backwards compatible with older RS-MMC devices. The dual voltage cards, and the MMCmobile are part of the MMC 4.x standards.



Learn more:

  • External Storage Devices: Types, Advantages and Techniques
    "External storage is a term used to describe any data-keeping device, such as a disk or a stream tape, located outside the computer. Typically, the term…"
  • Types and Examples of Compact Disc
    "A Compact Disc, commonly known as CD, is a polycarbonate disc with one or more metal layers capable of storing digital information. There are several primary…"
  • Optical Disc
    "An optical disc is a storage medium from which data is read and to which it is written by lasers. Optical discs can store much more data -- up to 6 gigabytes…"


Backup Terms Glossary

Who uses Handy Backup?