International Journal of Computer Applications
Universal Serial Bus (USB) external devices are high speed flash/external drives which can boast data transfer speeds, about as large as 5Gbps. Host controlled USB is the fastest way of transferring material to an external device available today. It is easy, convenient and fast to access these USB devices as compared to other external devices such as CD, DVD, Floppy drive etc. USB is easy to use as they are plug and play devices and do not require any additional installation. The other big advantage of USB is that the data transmission is done at the same speeds, irrespective of the size of the data being copied.