Network Hardware and Transmission Media
Across
- 5. a computer in a network that controls one or more printers and stores data to be printed (5,6)
- 6. a cable that consists of a single copper wire surrounded by an insulator, grounded shielding and an outer insulator, commonly used over distances of less than a few kilometres
- 8. a computer in a network that provides a connection to the Internet (3,6)
- 11. a device that allows Wi-Fi devices to connect to a wired network (8,6,5)
- 14. a short-range wireless mobile technology used for line-of-sight device communication over short ranges
- 16. a short-range wireless technology standard that is used for exchanging data between fixed and mobile devices over short distances
- 17. a combination of hardware and software to link two similar networks
- 19. an expansion card within a computer or other device, that allows the device to connect to a network (7,9,4)
- 21. a device for modulation and demodulation between the digital data of a computer and the analogue signal of a phone line.
Down
- 1. a networking device that forwards data packets between computer networks
- 2. a type of transmission medium that moves the data through air and space, without the need of a fixed physical connection between the source and the destination
- 3. a combination of hardware and software to link two different types of networks
- 4. relay stations in space used for the transmission of voice, video and data communications using the electromagnetic spectrum
- 7. a cable that consists of two thin insulated copper wires, twisted to form a spiral and reduce interference (7-4)
- 9. a high-speed device that receives incoming data packets and redirects them to their destination on a LAN
- 10. a controlling computer in a network that stores the program and data files shared by users (4,6)
- 12. a computer in a network that stores incoming mail for distribution to users and forwards outgoing mail to appropriate devices (4,6)
- 13. a cable free from electromagnetic and radio interference that uses a laser of light to carry data in small glass fibres up to 100 Gbps (5-5)
- 15. a central connecting device in a network that forwards data without any change
- 18. a type of radio wave used to transmit data from a few meters to several kilometers apart, previously used by television broadcasters
- 20. amplify the received/input signal to a higher frequency to expand the coverage area of the network