All digital cameras and phones usually have some internal memory built in when you purchase the product. However in the majority of cases, with very few exceptions, the memory is inadequate if you are to make full use of the digital camera/phone camera. Almost all new phones now give you the option of adding external memory and using this to store your music, photos and videos on. While they all do the same thing in providing you extra storage they do come in different sizes. The standard SDcard memory is usually used in digital cameras, while camera phones primarily take advantage of the smaller miniSD card and the even smaller microSD card. The high end digital cameras will use up to an 8GB compact flash card and some games consoles such as the Game Boy advance use an M3 adapter with an SD/TF card.
However there are many more advantages to using an SDcard or memory card in your device than just giving you additional storage. For example they allow faster access to the media, the cards are small in size so you can carry them around and swap them if needed and they have no parts that move, so no breakage.
Compact flash memory cards where first brought to light by a company called SanDisk in 1994. SanDisk are still one of the leading sources of SDcards, MicroSD cards, miniSD cards and compact flash card today, although others have copied.
The compact flash memory card comprises of flash memory chips on a tiny circuit board and a dedicated controller chip. This is all encased and held together in a plastic shell. The flash memory card measures 36mm x 43mm and they usually come in two thicknesses which are known as type one and type two. Type one is 3.3m and type two is 5.5mm thick. The compact flash memory card is usually found in storage sizes of 6GB and 8GB, the larger the size then the more storage the card has the 8GB are type two. Compact flash memory cards are ideal for devices that have a slower processor as the onboard controller increases the performance of the device.
It is essential to ensure that you know which type of memory card your particular device uses and just as important some devices such as mobile phones will only take up to a certain capacity of card. For example while there might be a 4GB mini SDcard, some phones will only take up to a maximum of 1GB or 2GB and will not recognize a larger capacity. Always check with the manufacturer of the device before buying your card.
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