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A card reader is a data input device that reads data from a card-shaped storage medium and provides the data to a computer. Card readers can acquire data from a card via a number of methods, including: optical scanning of printed text or barcodes or holes on punched cards, electrical signals from connections made or interrupted by a card's punched holes or embedded circuitry, or electronic ...
Most card readers also offer write capability, and together with the card, this can function as a pen drive. Some printers and Smartphones have a built-in card reader, as do many laptops and the majority of Tablet computers. A multi card reader is used for communication with more than one type of flash memory card. Multi card readers do not ...
PC Card is a parallel peripheral interface for laptop computers and PDAs. [1] The PCMCIA originally introduced the 16-bit ISA-based PCMCIA Card in 1990, but renamed it to PC Card in March 1995 to avoid confusion with the name of the organization. [2]
Originally developed by the Personal Computer Memory Card International Association (), the ExpressCard standard is maintained by the USB Implementers Forum ().The host device supports PCI Express, USB 2.0 (including Hi-Speed), and USB 3.0 (SuperSpeed) [2] (ExpressCard 2.0 only) connectivity through the ExpressCard slot; cards can be designed to use any of these modes.
Other external or dockable peripherals that have expandable removable media capabilities, usually via a USB port or memory card reader. USB hubs; Wired or wireless printers; Network routers, access points and switches; Using removable media can pose some computer security risks, including viruses, data theft and the introduction of malware. [6]
A Kingston card reader which accepts MicroSD memory cards (Transcend card shown partially inserted), and acts as a USB flash drive On a USB flash drive, one end of the device is fitted with a single USB plug ; some flash drives additionally offer a micro USB plug, facilitating data transfers between different devices.