A memory card is a unit of data storage numerical used generally for the storage of the numerical stereotypes in the numerical cameras, for the safeguards of left on video game consoles, but also in music players MP3 or instrument electronic professionals such as total stations.

Incompatibility

Generally these charts are incompatible the ones compared to the others, a memory card for a console Sony does not go for a console Nintendo for example. In the field of the numerical imagery, the charts are incompatible in the direction where a numerical Camera uses generally only one type of chart. The numerical cameras supporting more than one type of chart have the appearances of exceptions. However there exists on the market of the small cases multilecteurs (in English “Multi-Card Reader”), usable by the port USB or PCMCIA of the computer, or integrated in the computers fixed or portable, and able to read many formats. There also exists of the adapters to read a type of chart on an apparatus intended to read another type: for example to read a CompactFlash on a port PCMCIA. However, these adapters can read a type of chart which is compatible. As in the CompactFlash example and PCMCIA, these two formats are compatible since the CompactFlash charts are to some extent miniaturized charts PCMCIA.

Various charts

• the Chart SD or Secure DIGITAL in February 2006 is most widespread and offers a maximum capacity of 4  Go
• the the Chart CF or CompactFlash, formerly most widespread, offers a maximum storage of 8  Go in May 2005
• the Chart ms or Memory Stick offers a maximum storage of 8  Go at the end of 2006. It is especially used by the APN of the mark Sony. There are of them several alternatives (Pro duet, microphone…)
• the Chart XD or XD-Picture Card offers a maximum storage of 2  Go in September 2006. It is especially used by the APN of the marks Olympus and Fujifilm
• the Carte SM or SmartMedia Card (Olympus and Fuji), very thin, of a maximum capacity of 128  Mo, is abandoned
• the Carte MMC or MultiMedia Card
• the chart PCMCIA, of a more important gauge, being connected directly on port PCMCIA of the laptops.

List memory cards available on the market in 2006:

• the family of charts ms:

• Memory Stick
• Memory Stick Duet
• Memory Stick Micro m2
• Memory Stick Pro
• Memory Stick Pro Duet

• the family of charts SD:

• Secure DIGITAL
• Mini Secure DIGITAL
• Micro Secure DIGITAL
• Secure DIGITAL High Capacity

• the family of charts MMC:

• Multi Media Card
• Multi Micro Card Media
• Multi Mobile Card Media
• Multi Card Media More
• Multi Media Card Reduced Size

• other families:

• CompactFlash
• Micro Drive
• Smart Media
• xD Card
• MiCARD

The existing capacities today are of:

16  Mo, 32  Mo, 64  Mo, 128  Mo, 256  Mo, 340  Mo, 512  Mo, 1  Go, 2  Go, 2.2  Go, 4  Go, 5  Go, 6  Go, 8  Go.

Soon will appear charts 10 and 12  Go.

See too

See also: Memory card (training)

; for the consoles of video game

Random links:

PostScript | Sound System Monitoring | Referendum on the widening of the EEC | Égéria | X-13