Lesson 24 Vocab

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Across
  1. 4. Computer network that covers a large geograpgical area. Most WANs are made up of several connected LANs.
  2. 10. A type of fiber-optic telephone line that can transmit up to 1.544 megabits per second or can be used to transmit 24 digitized voice channels.
  3. 12. A network designed for the exclusive use of computer users within an organization that cannot be accessed by users outside the organization.
  4. 13. High-end programs designed to provide network control and include special functions for connection computers and other devices into a network.
  5. 15. An ISP that provides connection speeds more than 30 times faster that dial-up connections--from 384 Kbps to 2.0 Mbps.
  6. 17. A junction where information arrives from connected computers or peripheral devices and is then forwarded in one or more directions to other computers and devices.
  7. 18. A computer that handles requests for data, e-mail, file transfers, and other network services from other computers.
  8. 20. A device that directes traffic on a network by dividing data into smaller packets that travel by different routes and then are reassembled at their destination.
  9. 22. A combination of hardware and software that creates a buffer between an internal network and the Internet to prevent unauthorized access.
  10. 23. A series of connected personal computers, workstations, and other devices, such as printers or scanners, within a confined spaces, such as an office building.
  11. 25. A device on the network.
  12. 26. A variation of a LAN that uses no physical wires.
Down
  1. 1. A server that acts as an intermediary between a user and the Internet.
  2. 2. A network configuration that allows selected outside organizations to access internal information systems.
  3. 3. Computer architecture in which all of the computers on a network are equal and there is no computer designated as the server.
  4. 5. The world's collection of interconnected commercial and government owned voice-oriented systems.
  5. 6. Computer configuration in which one or more computers on the network act as a server.
  6. 7. Communications hardware device that facilitates the transmission of data.
  7. 8. An Internet connection technology that provides for the transfer of information to a computer at a high-speed bandwidth over ordinary copper telephone lines.
  8. 9. Examine a fingerprint, a voice pattern, or the iris or retina of the eye.
  9. 11. Expert computer user who invades someone else's computer either for personal gain or simply for the satisfaction if being able to do it.
  10. 14. The largest network used as a communication tool.
  11. 16. Link from one computer to another through which data can be transmitted.
  12. 19. A device that uses coaxial cable to send and receive data.
  13. 21. A recent wireless technology that can deliver maximum speeds of up to 7 Mbps to your cell phone, home computer, or car. Stands for Worldwide Interoperability for Microwave Access.
  14. 24. A computer that uses the services of another program.