Cisco Systems, Inc. is an American multinational technology conglomerate that develops, manufactures and sells networking hardware, software, telecommunications equipment and other high-technology services and products. Through its numerous acquired subsidiaries, such as OpenDNS, Webex, Jabber and Jasper, Cisco specializes into specific tech markets, such as Internet of Things (IoT), domain security and energy management. Cisco’s founders pioneered the concept of a local area network (LAN) being used to connect geographically disparate computers over a multiprotocol router system.