A card reader is a data input equipment that reads data from a card-shaped storage medium.
The contact IC card follows the ISO7816 standard interface, while contactless IC card follows ISO14443 standard interface.
And remote readers follow ETC GB20851 standard interface.
Memory cards interfaces are not uniform.
For instance, in ETC operating system, it can read and write IC card data within 10 meters.
Memory cards are widely used in smart phones and cameras.
In broad terms, smart phones and cameras have become the card reader.
Commercial versions of the card reader can read security smart cards.
Most card readers accept multiple memory cards formats, including Compact Flash and Secure Digital.
In addition, it is a plug and play unit.
(But now, Windows 7 andWindows Vistahave solved this problem.
After you insert the memory card, computer will display the corresponding Removable Disk.
If you remove memory card, however, the Removable Disk will disappear.)
If the add-on card reader is used, this problem is unlikely to occur.
But, it needs a USB socket.
