Cisco Systems, Inc. (known as Cisco) is an American multinational technology conglomerate
headquartered in San José, California, that develops, manufactures, and sells networking
hardware, telecommunications equipment, and other high-technology services products.[4] Through its numerous acquired subsidiaries, such as OpenDNS, WebEx, and
Jasper, Cisco specializes into specific tech markets, such as Internet of Things (IoT), domain security, and energy management.