Across
- 2. delivering data and messages through networks.
- 4. device directly connected to a central device
- 8. seven layers that computer systems use
- 10. the ability to connect systems or application programs
- 13. Display research
- 15. electrical device receiving a plug
- 16. a cellular radio system
- 18. key building blocks for networks
- 20. permits and constrains movement
Down
- 1. two or more pin diodes
- 3. a machine that can be programmed to carry out sequences
- 5. A type of network protocol
- 6. To connect devices without wires or cords
- 7. to provide wireless high-speed Internet access
- 9. system of rules
- 11. the delivery of computing services
- 12. a network security device that monitors
- 14. a system connecting a number of computer systems
- 17. use of computers to transfer information
- 19. protocol used in sending and receiving email