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A network is defined as a group of two or more computer systems linked together. There are many types of computer networks, including the following:

  • local-area networks (LANs): The computers are geographically close together (that is, in the same building).
  • wide-area networks (WANs): The computers are farther apart and are connected by telephone lines or radio waves.
  • campus-area networks (CANs): The computers are within a limited geographic area, such as a campus or military base.
  • metropolitan-area networks MANs): A data network designed for a town or city.
  • home-area networks (HANs): A network contained within a user's home that connects a person's digital devices.
  • Network Characteristics

    In addition to these types, the following characteristics are also used to categorize different types of networks:

  • topology : The geometric arrangement of a computer system. Common topologies include a bus, star, and ring. See the Network topology diagrams in the Quick Reference section of Webopedia.
  • protocol : The protocol defines a common set of rules and signals that computers on the network use to communicate. One of the most popular protocols for LANs is called Ethernet. Another popular LAN protocol for PCs is the IBM token-ring network .
  • architecture : Networks can be broadly classified as using either a peer-to-peer or client/server architecture.
  • Computers on a network are sometimes called nodes. Computers and devices that allocate resources for a network are called servers.

    computer network diagramImage: Network Topology diagram

    (v.) To connect two or more computers together with the ability to communicate with each other.

    Recommended Reading: Webopedia's Network Fundamentals Study Guide teaches the building blocks of modern network design.

    Top 5 Network Related Questions

    1. What is network software?
    2. What is network computer?
    3. What is network management?
    4. What is network security?
    5. What is a local-area network (LAN)?

    Video Description: Introduction to Computer network and IP address by Ravindrababu Ravula







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