Xerox provides services and document technology products to both large and small businesses. Perhaps best known for it's copy machine and printer technology, but the achievements of the company are far more expansive. Xerox has invented and developed many modern computing technologies that revolutionized personal computing including the graphical user interface (GUI), laser printing, and ethernet. Based in Norwalk, Conneticut, Xerox employs almost 150,000 employees operating in 180 countries and is consistently placed in the Fortune 500 companies. The Texas Department of Transportation recently selected Xerox to provide customer service and toll operations to the state. This includes management of more than 750,000 customer accounts. Xerox employs about 50 people at their location at 6836 Austin Center Blvd. Austin, TX 78731.