USB mean is "Universal Serial Bus."
A keyboard which is connected to the computer by use of a USB cable
If you mean a USB device, no sorry
it means using a USB to power something instead of a plug
Do you mean do usb devices work on an airplane? If so then yes.
The USB is the little port at the top of the PSP, which can be used to connect it to a PC.
I am assuming you mean the LED which flickers on your USB flash drive. Indicates the device is "in use". Typically when reading from or writing to the USB drive.
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USB 3.1 (C) can deliver a power output of up to 100 watts (20 volts and 5 amps).
it means that u can download songs,videos,images with the usb chord from computer etc.
If a person has a computer that is equipped with USB 2.0.1.1. it means that they can move files from a USB stick to their computer. They can also connect USB supported devices such as mice and keyboards.
Yes, you can. I have mine charging through a usb right now. Not sure if this is what you mean.