A USB port is both an input and an output.
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A USB port takes a device that can be both an input and an output device. For instance, an external USB hard-drive can be written to (by keyboard) and data can be extracted (put up on the monitor or sent to a printer).
It's an output. I think. The usb port is already in there, so it should be an output. An input is something you put in, and an output is something that comes out. Hope this helps. :)
A USB port is both and input and output port. Depends on what is connected to it as to which is functions as. Connect a camera and it is an input device. Connect a printer and it is an output device. Connect a printer/scanner and it is both.
input
A USB port
A usb cable is not a device. A USB drive would be a Storage Device and still not be an Input or Output device. A USB keyboard would be an input device and a USB printer would be an output device.
A usb cable is not a device. A USB drive would be a Storage Device and still not be an Input or Output device. A USB keyboard would be an input device and a USB printer would be an output device.
output
An I/O interface is a facility on a computer system for input and/or output of data. An example is a USB port on a PC.
The Universal Serial Bus or USB port Used for printers, scanners, headsets, wifi dongles, USB flash drives.......etc
input
output