Universal Serial Bus (USB)

​USB allows hot pluggable functionality of various devices. USB stands for Universal Serial Bus. USB connections can be on keyboard and mouse, various flash drives, external drives, scanners, printers, video cameras. This list can be expanded if I missed something. Unplugging a USB device is usually done via an operating system, such a device may need to be disabled first. If the device is in use then a warning message will be displayed and the drive cannot be disabled. If device is unplugged before it is disabled, then information that needs to be saved on that flash media may be lost.

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