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A USB flash drive, also variously known as a USB drive, USB stick, thumb drive, pen drive, jump drive, flash-disk, or USB memory, is a data storage device that.
USB - for
Additionally, they are immune to electromagnetic interference unlike floppy disks , and are unharmed by surface scratches unlike CDs. This redundancy helps detect errors. Most flash drives use a standard type-A USB connection allowing connection with a port on a personal computer, but drives for other interfaces also exist. A self-powered hub is a device that provides high-power ports. This ID pin is connected to GND in Type-A plugs, and left unconnected in Type-B plugs. Normally, when a computer is powered off the USB ports are powered down, preventing phones and other devices from charging. This is common for external hard and optical disc drives , and generally for devices with motors or lamps.
USB - elementary
Both corporate and public computers are vulnerable to attackers connecting a flash drive to a free USB port and using malicious software such as keyboard loggers or packet sniffers. An exception to this is endpoint zero, which is used for device configuration and is not associated with any interface. Therefore, in general, each different format requires four different connectors: a plug and receptacle for each of the A and B ends. These properties make them suitable for transporting data from place to place and keeping the data readily at hand. USB Flash Drive Alliance. If it is not ready to receive data, it should not USB a device to send. You can use USB to connect with other people through the power of PC-telephony and video conferencing. USB cables have the plugs, and the corresponding receptacles are on the computers or electronic devices. This is used to synchronize isochronous and interrupt data transfers. It is commonly used in point of 1206 systems to power peripherals such as barcode USBcredit card terminalsand printers. This bit should be ignored by receiver.