Since 1990, Computer Buying Solutions ( also known as Computer Broker Service, Inc ) has been providing high quality whole units and parts for companies worldwide. In addition to being an IBM authorized surplus reseller, CBS also offers a complete line of new, used and refurbished personal computers, notebooks, monitors, printers and other peripherals from other leading manufacturers, such as Compaq, Epson, Hewlett Packard, Lexmark, Okidata and many more.