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Computer networks
- 3. Two or more interconnected computers.
- 9. Communicating Sharing Chatting Sharing a printer Video conferencing Sharing storage Sending e-mail Sharing Files Playing games Internet connection
- 12. Local Area Network On a small area, e.g: within one building
- 18. Network Cable
- 23. Switch
- 25. Hub Switch
- 26. If workstation B wants to communicate with workstation C Hub A B C D E back
- 27. A B C D E Switch back If workstation B wants to communicate with workstation C
- 29. Hub Hub
- 30. Hub Hub
- 31. Switch Switch
- 32. Switch Switch
- 34. A WAN is made up of several connected LANs Wide Area Network
- 35. It can also be a group of several WANs, or some LANs and some WANs WAN
- 36. The Internet is the largest WAN in the world
- 38. LAN LAN LAN WAN
- 40. It is called a Client, because it receives services from a Server A Server is normally a powerful computer, that provides services to other computers and devices on a network
- 41. Type Service Printer server Allows clients to print using one shared printer Storage server Allows clients to save/store their files on a shared drive Web server Hosts the web-pages, that are accessed by the clients Mail server Stores clients mail accounts and inboxes. Allows clients to send email.
- 42. Storage server Printer server Tom Mia Ben Tom Mia Ben
- 43. • Can be used instead of a router, if it is directly connected to an Internet source. • Can speed up an Internet connection by caching content
- 44. A firewall protects your network against unwanted access.
- 45. A firewall can be a hardware device and it can be software that is installed on a computer or a server.
- 47. 1. Router 2. ISP The Internet Service Provider, is a company, that has a very large connection to the Internet. Switch WAN WAN LAN
- 49. Wireless Local Area Network
Editor's Notes
- A network is a set of computers that are connected together
- Like computers in an office
- Or in a school lab
- Or a home network
- C – A WITH A BRIDGE AND SWITCHES
- C – G WITH A BRIDGE AND SWITCHES
- Name and logo Bluetooth logo The word "Bluetooth" is an anglicized version of the Scandinavian Blåtand/Blåtann, the epithet of the tenth-century king Harald I of Denmark and parts of Norway who united dissonant Danish tribes into a single kingdom. The idea of this name was proposed by Jim Kardach who developed a system that would allow mobile phones to communicate with computers (at the time he was reading Frans Gunnar Bengtsson's historical novel The Long Ships about Vikings and king Harald Bluetooth).[5] The implication is that Bluetooth does the same with communications protocols, uniting them into one universal standard.[6][7][8] The Bluetooth logo is a bind rune merging the Younger Futhark runes (Hagall) (ᚼ) and (Bjarkan) (ᛒ), Harald's initials.