Hardware of the internet key words

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Across
  1. 4. company that provides Internet connections and services to individuals and organisations
  2. 6. a system or router that provides a gateway between users and the internet. Therefore, it helps prevent cyber attackers from entering a private network.
  3. 7. the transmission of a file from one computer system to another, usually larger computer system.
  4. 10. system that restricts internet traffic in, out, or within a private network.
  5. 11. the technology used to transmit information as pulses of light
  6. 12. a physical or virtual appliance that passes information between two or more packet-switched computer networks
Down
  1. 1. translates human readable domain names to machine readable IP addresses
  2. 2. traditional technology for connecting devices in a wired local area network (LAN) or wide area network (WAN).
  3. 3. the rate at which someone or something moves
  4. 5. an established set of rules that determine how data is transmitted between different devices in the same network
  5. 8. unit of hardware
  6. 9. technology used to connect computers, tablets, smartphones and other devices to the internet