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Card reader

External USB multicard reader for memory cards SD / MMC , MS / MS Pro, CF I / II, xD / SM

Card reader ( Eng. Card reader , also writing options are used card reader , card reader , card reader , etc. [1] ) - a device for reading memory cards , as well as other electronic cards for various purposes. In particular, smart cards and flash cards .

The most common are:

  • universal card readers for flash-based storage devices, often containing several different connectors and connected via USB to a general-purpose computer. There are external (in the form of a separate device) and internal (in the form of a module installed in the 3.5 "system unit compartment). USB card readers usually implement the standard class of USB Mass Storage Device [2] , drivers for which are included in most operating systems.
  • specialized smart card readers connected to equipment using the appropriate type of card. For example, an ATM card reader ( EMV ), a card reader in ACKP and subway checkpoints.

According to the principle of the card reader, there are:

  • Traditional, with electrical connection pins . Provide the highest speed data exchange. Currently used as computer memory devices along with hard drives .
  • Magnetic, having a magnetic head for reading strips on magnetic cards . Cards for this type of device have long been distinguished by the lowest cost of production, and therefore such systems are widely used.
  • Electronic contactless (NFC).
  • Built-in 3.5 "-chart multicard reader memory cards ( USB 2.0 , T-Flash (microSD), SD / MMC , XD , CF / CF II , MS / MS Duo )

  • Card reader in the form factor of a USB flash drive for memory cards

  • PCMCIA Smart Card Reader

  • Compact USB Smart Card Reader

  • RS-232 card reader ( DE-9 connector) for smart cards

Notes

  1. ↑ Help desk | GRAMOTA.RU
  2. ↑ Tuning and Customizing a Linux System , 2002, ISBN 978-1-893115-27-9 page 311: “Many of these readers adhere to a hardware specification for USB mass storage devices.”

See also

  • Universal electronic card


Source - https://ru.wikipedia.org/w/index.php?title=Card reader&oldid = 96233266


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Clever Geek | 2019