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Network

Network. Network. A computer network is a group of more computers connected to each electronically, consisting in a server.

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Network

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  1. Network

  2. Network • A computer network is a group of more computers connected to each electronically, consisting in a server. • This allows files easily to be shared. Usually, this means that the speed of the connection is faster than a normal connection to the Internet. Also can share hardware devices such as: Printer. Some basic types of computer networks include: A local area network, An "internetwork“.

  3. Standalone • A Standalone server is a type of server that is not part of a larger network infrastructure such as an Active Directory domain. • In a general sense, a standalone server provides services to clients without relying on any external resources, including authentication. These devices can be such as a fax which does not need any server to have a control.

  4. LAN (Local Area Network) • LANs are confined to a small area, like within a building or several, it’s messages are sent between terminals and this is very useful for sending memos between offices. • LAN can be used in schools, home offices etc.

  5. LAN (Local Area Network) Advantages Disadvantages Regional area coverage is limited When a file developed a fault, all the users in a server will be affected. Special security program is needed to prevent users accessing into programs and data which is restricted. It is difficult to setup and needs maintenance regularly • Easy to share devices, such as (printers, scanners, external drivers) • Easy to share data (homework, picture) • When a new version is introduced, it only has to be loaded onto the server instead of onto every workstation • Cost of LAN setup is low

  6. Cable LAN (Local Area Network) & Types • Cable LAN are used to connect one network device to other or to connect two or more computers to share devices such as printer, scanner etc. • Types of cabled LANs: • Twisted pair – a form of wiring which a twisted conductors are used and used in homes and offices • Coaxial cable – uses electromagnetic waves inside the cable and is used for TV • Optical fiber – the latest form cable LAN of transferring light pulses that is provided by the ISPs which is made out of very thin material of glass.

  7. Router • A router enables to transmit data such as internet between the computer networks.

  8. WAN (Wide Area Netork) • WANs cover a wide geographical area. This can link computers in different countries using satellites, microwaves or telecommunication links.

  9. Client • A client is an application or system that accesses a service made available by a server.

  10. Server • A server is a computer that serves many things to user, or client machines. Usually a server will only do a few things. • Every type of thing a server does is called a service. Services are used by other computers that are called clients. The relationship between the client and the server is called a client-server relationship.

  11. Client/Network Server • A network client/server is a computer that provides various shared resources to workstations and other servers on a computer network. • The shared resources can include disk space, hardware access, and email services.

  12. Peer to Peer Network • In its simplest form, a peer-to-peer (P2P) network is created when two or more PCs are connected and share resources without going through a separate server computer. • A P2P network can be an ad hoc connection—a couple of computers connected via a Universal Serial Bus to transfer files.

  13. Bibligraphy • http://answers.yahoo.com/question/index?qid=20080914004237AAlPZXT • http://en.wikipedia.org/wiki/Client_(computing) • http://en.wikipedia.org/wiki/Peer-to-peer • http://compnetworking.about.com/od/basicnetworkingfaqs/a/client-server.htm • http://en.wikipedia.org/wiki/Server_(computing) • http://en.wikipedia.org/wiki/Wide_area_network • http://en.wikipedia.org/wiki/Local_area_network • http://en.wikipedia.org/wiki/Standalone_server • http://en.wikipedia.org/wiki/Computer_network

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