Lesson 24 Vocab

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Across
  1. 1. switched telephone network: the world's collection of interconnected commercial and government owned voice-oriented systems
  2. 4. the largest network used as a communication tool
  3. 6. 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
  4. 8. method of high-level security that examines a fingerprint, voice pattern, or the iris or retina of the eye and matches it with the original entry in the system.
  5. 10. a series of connected personal computers, workstations, and other devices such as printers or scanners, within a confined space, such as an office building
  6. 12. link from one computer to another through which data can be transmitted
  7. 13. a computer that handles requests for data, e-mail, file transfers, and other network services from other computers (clients)
  8. 14. a network configuration that allows selected outside organizations to access internal information
  9. 15. a device that uses coaxial cable to send and receive data
  10. 17. computer configuration in which one or more computers on the network acts as a server
  11. 19. a network designed for the exclusive use of computers within an organization that cannot be accessed by users outside the organization
  12. 20. a server that acts as an intermediary between a user and the Internet
  13. 21. a junction where information arrives from connected computers or peripheral devices and is then forwarded in one or more directions to other computers
  14. 22. communications hardware device that facilitates the transmission of data
  15. 24. line: an internet connection technology that provides for the transfer of information to a computer at a high speed bandwidth over ordinary copper telephone lines
Down
  1. 1. network: computer architecture in which all of the computers on a network are equal and there is no computer designed as the server
  2. 2. a variation of a lan that uses no physical wires
  3. 3. network: computer network that covers a large geographical area. most wans are made up of several connected lans
  4. 5. a device on the network
  5. 7. an isp that provides connection speeds more than 30 times faster than dial-up connections - from 384 kbps to 2.0 mpbs
  6. 9. a computer that uses the services of another program
  7. 11. a device that directs traffic on a network by dividing data into smaller packets that travel by different routes and then are reassembled at their destination
  8. 16. a combination of hardware and software that creates a buffer between an internal network and the Internet to prevent unauthorized access
  9. 18. a type of fiber-optic telephone line that can transmit up to 1.544 megabits per second or can be used to transmit 24 digitalized voice channels
  10. 21. expert computer user who invades someone else's computer either for personal gain or simply for the satisfaction of being able to do it
  11. 23. operating system: high-end programs designed to provide network control and include special functions for connecting computers and other devices into a network