At present, Memory Card are widely used as well.- MMC Card (MultiMedia Cards) is a memory card the older popular used nowadays are expensive and have the capacity that very little. The maximum capacity was found in 512 MB only.- SD Card (Secure digital card) is a memory card used to work at present, which has small size, simple and portable that have more capacity. MMC and high speed data transfer is higher than.- MicroSD card CF (CompactFlash card) is the same type of memory card SD Card but is smaller. With the modern electronic equipment- MS (Memory stick) is a card produced from the company Sony, capable of data transfer is very high, but the waste as a single is rarely used much by the card. MS will use the products of Sony only and is more expensive than other types of memoryBut the memory card that is very popular nowadays is SD Card which has developed applications to continuously is MicroSD card. Smaller than the SD Card and use, with many kinds of electronic equipment at present.The SD Card can be divided into 3 together, which is divided by ability points as follows.1. SD Card (Secure Digital) has a capacity since 4 MB to 4 GB is a card used with electronic equipment to want a lot of capacity across2. SDHC Card (Secure Digital High Capacity) is a card with memory capacity 4 GB to 32GB used with electronic equipment to new generation capacity in data collection.3. SDXC Card (Secure Digital eXtended Capacity) is a card unit has high capacity since 32 GB until 2 TB the card this version we find use with high resolution cameras required by most cards. SDXC Card is a card with high data transfer, which is at the level of 10 U 1.The level of data transfer and the writing of SD Card that still can be divided into levels. The reference is a number that can be seen by the SD Card the numbers as follows.- Class 2 data transfer speed, minimum at 2 MB / sec and a maximum speed in 8 MB / sec.- Class 4 data transfer speed, minimum at 4 MB / sec and a high speed possible.
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