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Cisco Systems, Inc. (known as Cisco) is an American multinational technology conglomerate headquartered in San José, California, in the center of Silicon Valley, that develops, manufactures, and sells networking hardware, telecommunications equipment, and other high-technology services and 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.


  1. Contact Cisco. Retrieved on 1 March 2017.
  2. 2.0 2.1 2.2 2.3 2.4 Cisco Systems, Inc. 2016 Annual Report Form (10-K). United States Securities and Exchange Commission (February 27, 2016).
  3. Cisco Overview. Cisco.
  4. Cisco, Form 10-K, Annual Report, Filing Date Sep 12, 2012. Retrieved on March 25, 2013.