Hi Lisa, Jump drives and thumb drives are terms used pretty much interchangeably I think. But it's a little drive about the size of one of those Bick cigarette lighters. You connect it to your USB port and if all goes well, it shows up as another disk drive in your computer. You can then copy and paste files to it, and manipulate them just as you would one of your drives in your computer. I have one that has 256 mb worth of storage, and another .mp3 player which can also be used as a jump drive which has a gig of space available on it. You can copy files to them, and put them on your lap top or mpower, etc.
Pam
