7.3 Keywords

1. uses copper cable or fibre optic cable to form the connections between the networked devices (nodes)
3. A set of computers sharing resources
5. a device that forwards data packets to the appropriate parts of a computer network
7. a block of data transmitted across a network
9. the effective centre of an activity, region, or network
10. a computer network that uses wireless data connections between network nodes
12. the process of sending digital or analog data over a communication medium to one or more computing, network, communication or electronic devices
14. "Internet Protocol," which is the set of rules governing the format of data sent via the internet or local network
15. a computer or computer program which manages access to a centralised resource or service in a network
16. a range of frequencies within a given band, in particular that used for transmitting a signal

2. networking hardware used to connect one network device to other network devices
4. defined as a set of physical or network devices that are essential for interaction and communication between hardware units operational on a computer network
6. Transmission Control Protocol
8. a set of rules governing the exchange or transmission of data between devices
11. messages distributed by electronic means
13. a global computer network providing a variety of information and communication facilities, consisting of interconnected networks using standardised communication protocols