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Computer networks
- 3. Two or moreinterconnected computers.
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- 9. Communicating Sharing Chatting Sharinga printer Video conferencing Sharing storage Sending e-mail Sharing Files Playing games Internet connection
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- 12. Local Area Network Ona small area, e.g: within one building
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- 26. If workstation Bwants to communicate with workstation C Hub A B C D E back
- 27. A B C D E Switch back If workstation Bwants to communicate with workstation C
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- 34. A WAN ismade up of several connected LANs Wide Area Network
- 35. It can alsobe a group of several WANs, or some LANs and some WANs WAN
- 36. The Internet isthe largest WAN in the world
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- 40. It iscalled 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 serverAllows 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 TomMia Ben Tom Mia Ben
- 43. • Can beused instead of a router, if it is directly connected to an Internet source. • Can speed up an Internet connection by caching content
- 44. A firewallprotects your network against unwanted access.
- 45. A firewallcan 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 AreaNetwork
Editor's Notes
- #4 A network is a set of computers that are connected together
- #5 Like computers in an office
- #6 Or in a school lab
- #7 Or a home network
- #32 C – A WITH A BRIDGE AND SWITCHES
- #33 C – G WITH A BRIDGE AND SWITCHES
- #51 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.