Node - Any device that is connected to a network
        Client - A node that requests and uses resources available from other nodes.
      Server - A node that share resources with other nodes.
                    Host/server - Any computer that provides services and connection to other computers
    on a network.
   Switch - A device used to connect multiple devices on a single (typically wired) network; forward
       packets to only the intended recipient.
     Hub - The device that provide a common central connection point for nodes on networks.
         Network Interface Cards (NIC) - An expansion cards through which a computer can
 connect to a network.
          Wireless Network Interface Cards - An expansion cards through which a computer can connect
   to a network that provides wireless data transmission.