Friday, August 14, 2009

Flash Memory Card

Introduction to Flash Memory Card
Flash memory refers to a particular type of EEPROM, or electrically erasable programmable read only memory. It is a memory chip that maintains stored information without requiring a power source.



Flash memory is

 Non volatile.

 Considered as solid state storage devices.

 Used more as hard drive.


Why Flash Memory Cards Popular?

Flash Ram storage devices are shock proof, dust proof, immune to magnetic fields and really small too. Flash Memory provides storage for today’s electronic devices such as iPods, PDA, digital cameras,

CAMCORDERS utilize flash cards. Important Methods in Flash Memory Working TUNNELING  ERASING
Different Types of Flash Memory Cards SMART MEDIA CARD COMPACT FLASH xD PICTURE CARD SECURE DIGITAL or MULTIMEDIA CARD MEMORY STICK
Smart Media Card Better known as smart media 2MB to 128 MB Developed By ToshibaCompact Flash Developed by Sandisk  8MB to 6 GB They are thicker Utilize controller chip
Compactable flash card comes from 2 ways Type I Type II
Xd Picture Card xD means “extreme digital” Currently available from 64MB to 1GB Found in Fuji and Olympus digital camera
SECURE DIGITAL or MULTIMEDIACARD They designed to hold copyrighted musical content. Small size. Low power consumption. 16MB to 2GB.
MEMORY STICK Shaped like a stick of gum Smaller size Storage capacity up to 128 MB Ideal for mobile application
EXTERNAL CARD READERSIt is used to access digital cameras images very fast. These come in many varieties depending on the computer interface. Most common type are made for PCs and connected to the usb port.
Advantages of Flash Memory Cards Power consumption. Portability. Capacity. Durability. Performance. Reliability. Plug-and –play.

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