Cisco Systems, Inc. is one of the largest computer companies of today and a dominant player in the field of networking and information technology as a whole. Among other things, it produces Ethernet and ATM switches, routers, VoIP gateways, and IP phones. The company was founded in 1984 by a small group of scientists and it had many important successes from then. It basically has very few competitors because the entry bar into this business is very high. It currently employs more than 65,000 employees worldwide.