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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 ...
His memory card manipulations falsified both the voting machine results tapes and the GEMS central tabulator report. Leon County Supervisor of Elections Ion Sancho stated that he would have had no way to detect the tampering and would have certified the election. The Hursti memory card hack performed in Leon County on Dec. 13, 2005 is a ...
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 have built-in memory capacity, but are able to accept multiple types and styles of memory cards.
After determining that the SD card supports it, the host device can also command the SD card to switch to a higher transfer speed. Until determining the card's capabilities, the host device should not use a clock speed faster than 400 kHz. SD cards other than SDIO (see below) have a "Default Speed" clock rate of 25 MHz.
XM (requires an eXternal electro-mechanical adapter) – Technically the same as EM, but such adapter usually consists of 2 parts: a pseudo-card with pin routing and physical enclosure size that perfectly match the target slot and a break-out box (a card reader) that holds a real card. Such adapter is the least comfortable to use.
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 memory card, such as MMC and SD, is shaped to fit into a special port for the card. A USB flash drive connects via USB and is not constrained by shape and size as a card is. [2] [11] In general, an SSD uses a relatively fast interface such as Serial ATA (SATA) or PCI Express (PCIe) paired with a logical device interface such as AHCI or NVM ...
A computer punched card reader or just computer card reader is a computer input device used to read computer programs in either source or executable form and data from punched cards. A computer card punch is a computer output device that punches holes in cards. Sometimes computer punch card readers were combined with computer card punches and ...