hardware

2. a system for connecting a number of computer systems to form a local area network, with protocols to control the passing of information and to avoid simultaneous transmission by two or more systems.
3. electronic device for storing/processing data
6. a thing made or adapted for a particular purpose, especially a piece of mechanical or electronic equipment.
8. one billion bits
11. consisting of or using thin flexible fibres with a glass core through which light signals can be sent with very little loss of strength.
12. the rate at which someone or something moves or operates

1. something that is under the sea
4. a facility allowing computers, smartphones, or other devices to connect to the internet or communicate with one another wirelessly within a particular area.
5. the main means of mass communication (broadcasting, publishing, and the internet) regarded collectively.
7. a person or organization using the services of a professional person or company.
9. V
10. A router is a device that connects two or more packet-switched networks or subnetworks.