A computer flash drive is a small, portable flash memory card that plugs into a computer’s USB port and functions as a portable hard drive. Computer flash drives are touted as being easy-to-use as they are small enough to be carried in a pocket and can plug into any computer with a USB drive.
A USB flash drive is a type of plug and play portable storage devices that uses flash memory and is lightweight enough to attach to a key chain. USB flash drives also are called thumb drives, jump drives, pen drives, key drives, tokens, or simply USB drives.