Memory cards were introduced around 1990 when the technology of mobile phones and digital cameras began to evolve and became more complex. Nowadays it is not uncommon to have a mobile phone with a built-in 5 megapixel camera that allows you to take high resolution photos. As the built-in storage in the phones is very low, on average around 10MB, the need for additional storage arose and therefore the memory card, the SD card, was one of the first.
While the SD card was the first to be introduced, MiniSD, MicroSD, MS Micro2, and Micro SDHC quickly followed. One of the first manufacturers to jump on the train with the need for memory was SanDisk, although many others have followed. Not only were they used in phones, cameras, and camcorders, but they also took advantage of those who used video game controllers on Xbox, GameCube, and Play Station.
Memory cards range from 512MB to the massive 8GB, which are generally well used in the high-end digital camera range. SanDisk produces an 8GB Memory Stick M2 which is used by many of the newer slimmer Sony Ericsson phones. With multimedia phones that have high resolution cameras, then a large amount of memory is essential for storage. The beauty of the M2 is that it is compatible with devices that use the Memory Stick PRO Duo with the use of an M2 adapter. The M2 memory card also comes with 1GB, 2GB, and 4GB storage.
Pro duo memory is used in consoles like the Play Station 3, Sony PSP, digital cameras like Sony Cybershot, and some of the many Sony Ericsson phones.
MicroSD cards are used in some of the smaller mobile phones and many come with a special USB adapter, this makes transferring media to and from your device quick and easy. Just take the microSD card from the phone, put it in the USB adapter and put it in your computer and transfer your music etc. directly to the card and then back to the phone or device. MicroSD cards come in 1GB or 2GB sizes from SanDisk.
MicroSDHC memory cards [http://www.directsaleschat.co.uk/memory/microsdhc-147.html] They are used in most Blackberry phones and smart phones like HTC, LG and Nokia. These are typically 4GB or 8GB and are used to store a variety of multimedia, such as high-quality music, videos, and photos. A card reader can also be used with the memory card for ease of use when it comes to transferring media to and from the card.
