An SD, or secure digital, card is a specific memory card format that a variety of portable devices–including digital cameras, PDAs and mobile phones–utilize. In order to retrieve data saved on an SD card, you must learn how to open the card on your computer. Once you open the card, you can copy files for transferring or editing purposes. You need to perform only a few steps to open an SD card, either with a USB reader or without one. Writer Bio
