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  1. en.wikipedia.org › wiki › 5G5G - Wikipedia

    5 days ago · In telecommunications, 5G is the fifth-generation technology standard for cellular networks, which cellular phone companies began deploying worldwide in 2019, and is the successor to 4G technology that provides connectivity to most current mobile phones. Like its predecessors, 5G networks are cellular networks, in which the service area is ...

  2. en.wikipedia.org › wiki › InternetInternet - Wikipedia

    2 days ago · The Internet (or internet) [a] is the global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP) [b] to communicate between networks and devices. It is a network of networks that consists of private, public, academic, business, and government networks of local to global scope, linked by a broad array of ...

  3. en.wikipedia.org › wiki › ComcastComcast - Wikipedia

    1 day ago · Comcast Corporation (simply known as Comcast, and formerly known as American Cable Systems and Comcast Holdings, stylized in all caps as COMCAST ), [note 1] incorporated and headquartered in Philadelphia, is an American multinational telecommunications and media conglomerate. [8] The corporation is the second-largest broadcasting and cable ...

  4. en.wikipedia.org › wiki › AT&TAT&T - Wikipedia

    1 day ago · AT&T Inc. (with "AT&T" being an abbreviation for its former name, the American Telephone and Telegraph Company) is an American multinational telecommunications holding company headquartered at Whitacre Tower in Downtown Dallas, Texas. [5] It is the world's fourth-largest telecommunications company by revenue and the largest wireless carrier in ...

    • 1885; 138 years ago
    • US$120.74 billion (2022)
    • 160,700 (Jan. 2023)
  5. en.wikipedia.org › wiki › CiscoCisco - Wikipedia

    4 days ago · Cisco Systems was founded in December 1984 by Leonard Bosack and Sandy Lerner, two Stanford University computer scientists who had been instrumental in connecting computers at Stanford. They pioneered the concept of a local area network (LAN) being used to connect distant computers over a multiprotocol router system.

  6. 3 days ago · A cross section of the shore-end of a modern submarine communications cable. 1 – Polyethylene. 2 – Mylar tape. 3 – Stranded steel wires. 4 – Aluminium water barrier. 5 – Polycarbonate. 6 – Copper or aluminium tube. 7 – Petroleum jelly. 8 – Optical fibers.

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