-Hub: a node that broadcasts data to every computer or Ethernet-based device connected to it
-Switch: a device in a computer network that connects other devices together
-Fibre: a high-speed data transmission medium
-Optic: relating to light
-Ethernet: a family of wired computer networking technologies commonly used in local area networks
-World Wide Web: an interconnected system of public webpages accessible through the Internet
-WiFi: a facility allowing devices to connect to the internet or communicate with one another wirelessly within a particular area
-Server: a computer connected to a network of other workstations called 'clients
-Router: receives and sends data on computer networks
-ISP: a company that provides web access to both businesses and consumers
-DNS: translates human readable domain names (for example, www.amazon.com) to machine readable IP addresses (for example, 192.0. 2.44)
