how can i copy files from old dell computer with windows xp to new dell commputer with windows 7? what kind of cable do i need?
The very easiest way is to take the drive out of the old computer and install it as a second drive in the new computer. Then access the old drive and drag the files out.
A USB transfer cable, or a flash drive is also doable. Or, CD, DVD, Online backup service such as Mozy is also a pretty good way to bring files across.