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Card reader for what? how to use?

Publish: 2016-10-10  Views: 884
Lift the reader, many people will immediately think of this product is produced with a digital camera, but is no longer confined to the use of digital cameras, but extended to more areas. Do you know what the card reader is for? How to use it?

 
        Card reader for what:
 
        "Reader" As the name suggests this is a device to read data, but it can not only support the data read also supports data write. Its initial design idea is mainly to compensate for the digital camera data output defects arising. As the early USB interface is not universal, so the output of digital cameras are connected with the computer's serial port, the serial data transfer rate is very low, if the data copied to the hard disk, it will take a lot of waiting time . Therefore, the card reader came into being. With the MP3, PDA and other digital products, the development of a strong impetus to the reader. MP3 standard 32M or 64M flash memory has obviously can not meet our needs, so add 128M of flash memory has become our standard configuration, but if we want to MP3 songs copied to the flash, then only through the MP3 player to , And this time we need a dedicated connection, driver and software to complete, so MP3 players can carry a lot worse, and if this time we use the reader, then, do not need MP3 player Intervention, you can directly put MP3 songs stored on the flash, so that MP3 becomes more convenient to use.
 
        In addition to the above-mentioned digital devices provide convenient use of data transfer, the current card reader is also a lot of use in the mobile data storage. In the early years of the use of computers, as long as a few floppy disk can copy the commonly used software, DOS system as long as done in a floppy disk is enough, and those small game a floppy disk can be installed several. Floppy drive as a standard driver basic equipment to meet the people work, study the storage needs.
 
        Later, with the development of computer technology, especially the introduction of WINDOWS operating system, the software volume into a geometric progression increases, the standard 1.44M floppy disk for these behemoths that poor capacity as "drop in the bucket." The desire for mass storage has led to the growing popularity of hard drives, optical drives and various storage devices such as compressed storage devices, not only that, people accustomed to the mobile office would prefer to have a portable portable data storage large " "equipment. So the type of external storage devices are also more and more, the first ZIP, then there are external hard drives and so on. But their size is not small enough, carry with or some inconvenience. Now popular U disk, such as the Netac USB, Lu Wen disk, the Patriot Mini King, they will USB controller and flash memory chips together, the volume is very small, for large-capacity data transmission is very convenient. However, the higher the price of such products, you pay the price is also a lot of money.
 
        Card reader for what? How to use it?
 
        If you use the combination of card reader and memory card can also provide the same effect of U disk, memory card mainly CF card and SM card, they are using flash memory chips, MP3 players, digital cameras, PDA and other devices are widely used. When the USB card reader plug in the memory card, the equivalent of a mobile electronic hard drive. This compact and convenient flash memory card has become our convenient mobile storage media, and the reader is the flash memory used to exchange data, the most convenient device. Their performance and U disk rather, the volume is not large. But compared with the price there is a gap, such as a 128MB U disk price of 1,000 yuan; and with a card reader (100) plus a 128MB memory card (400 million), a total of only 500 yuan , The obvious advantages. In addition, this combination has a very strong scalability. The current price of memory cards continue to fall, if you need to increase capacity, you can directly buy a memory card, the price will be cheaper than the same capacity of the overall electronic hard drive. And if you buy a digital camera or MP3 player and other equipment, the memory card can be directly used in the top, to protect your investment.
 
        The above is Xiaobian to introduce the reader to do, how to use the problem I hope you use the process of understanding, and can help to everyone.