Abstract
With increasing use of the Internet, cellular telephones, communications and media in general, interconnectivity has been growing at a rate that no one could have imagined ten years ago. As a result, problems have arisen in the wireless industry related to limited bandwidth as well as connections to "wired" devices. Of the many new serial protocols that have popped up in response to these problems, the USB (Universal Serial Bus) currently seems to be reigning supreme. One of the reasons that USB was implemented was to replace existing serial and parallel ports on computers. This document throws light on the basic aspects for those who are not too familiar with the serial bus technology, accompanied by a short summary of USB history followed by the basis of USB working. This will be followed by the strengths and weaknesses of the USB.
