Plug two or three devices into that port if none of them work the port is defective.
Most adapters plug into a USB port, if that is the case then find the standard USB port on your computer, it is a small sideways rectangular port.
You check if a usb device e.g. flash memory works in a good port. If it works, do that in the port you'd like to determine and see if your device is found.
You can plug your ipod into the USB port. You can find the USB port sometimes on the front of your desktop but there is always a USB port in the back of your desktop. Same goes for a laptop but the USB port is found on the right or the left side of the laptop.
To unblock a USB port, simply click on the 'start' menu. From there, go to 'my computer', 'system tools', 'computer management' and then find the USB port in the list. From there, right click the icon and click 'enable'.
Put a known good device in that port...process of elimination!
Hook a mouse to it or see if a keyboard works. They do make a USB port checker, a little spendy, but Google/Yahoo it to find out.
USB port.
The USB port is hardware.
If you cannot find a USB cable for the PRINTER then it is proably a Network printer which means you cannot use it with USB!! :@ If you have no USB port on ur PC/Mac then you need to change it! :D Simples!!
There are several places where someone could purchase a USB to parallel port adapter. Stores such as Office Depot and Staples both sell the USB to parallel port adapters.
A FD (flashdrive) is a portable data storage device that uses flash memory. A USB port is a port for a USB cable or anything that has USB capabilities, to plug into. For example, a FD normally plugs into a USB port.