I'm not very computer illiterate (or should I say 'computer lazy'?, so I'm not up to date on all the new toys. Could someone explain flash drives?

I do know they are little storage containers, if you will. Right? Can you store documents? Say use one to transfer documents from one computer to another? Store school files that you don't want sitting on your HD?

Thanks you in advance for any help you can give.

SQD