Basic Idea about Memory Cards

A memory card is basically a chip card with memory and controlled only by fixed logic. It does not have a microprocessor to run the system. The memory card is a natural progress from the Compact Disk. With exponential development in technology, demands for more storage space with multi-facilities and multiple interfaces have also grown. People wanted powerful and ubiquitous portable devices and compacts disks were found wanting in their utilities because CDs could not have data stored on them after the initial stamp.

The memory card is very tiny in size and is easy-to-use but offers a host of powerful advantages. Memory card can smoothly link to several kinds of digital equipments via its easy connectivity features and transfers data at a really high speed. It can also support lots of different applications and platform from a mobile handset to a digital camera, gamming console, playstations and digital music gadgets like the iPod. Initially memory cards were available in one format only which is known as CompactFlash. But soon new formats like MemoryStick, MultiMediaCard (MMC), SecureDigitalCard (SD Card), SmartMedia and xD-Picture Card were introduced in the market. CompactFlash is the de facto standard to flash memory storage. It can be used in any digital device from a digital camera to a mobile handset that has external memory feature. Multi Media Cards (MMC) are smaller in size but has same features. SD cards have been made using the Multi Media Card (MMC) format but they are physically thicker than MMC cards that gives them some advantage over MMC cards. Almost all memory cards use write-protect tab and devices into which they are plugged can sense the absence of the tab from the front notch thus protecting the cards from writes. A memory cards usually have huge memory storage capacity but there seems to be no limit. With growing popularity among consumer to use digital gadgets, memory storage capacity is always found less than the demand. So, newer models and versions with more and more storage capacity are being introduced by companies to get an edge over their competitors by rendering existing models useless. This leaves the consumer with the option to purchase an additional memory card with a greater capacity and higher read and write performance.