Cisco is one of the largest network hardware manufacturers. Equipment such as routers and switches, firewalls, and wireless ... is one of the main products of the company. With this in mind, many of the company's network of equipment is used. Cisco Systems, Inc., an American telecommunication equipment manufacturer, is based in San Jose, in the area known as Silicon Valley, California. The company designs network and communications products and sells them to three different brands of Cisco, Linxes, and Sci-Tech Atlanta. Initially, Cisco only produced multi-protocol routers, but today Cisco products are available from living room to network providers all over the world. Currently, Cisco is one of the largest manufacturers of switches, routers, firewalls in the world, and recently it has been manufacturing servers.