networking
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Networking. By Nachiket Agrawal 10DD. Network. A Network consists of more than one computer that are interconnected in order to share files, resources, web and more. . Stand Alone. - PowerPoint PPT PresentationTRANSCRIPT
Networking
By Nachiket Agrawal 10DD
NetworkA Network consists of more
than one computer that are interconnected in order to share files, resources, web and more.
Stand AloneA stand alone device is one
which does not require any other devices to function. For example a fax (facsimile) device does not require a modem or a computer to function while a printer needs to be connected to a device, a computer, to function. A Stand alone
deviceNot a stand alone device
LANThe Local Area Network is a
computer network that interconnects devices in a limited area.
For example a LAN can be over a school, office, home, etc.
Advantages and disadvantages of LAN
Advantages:1. Hardware can be
shared.2. Network software is
cheaper than individual packages.
3. The users can access the same files.
4. A single internet connection can be shared between the users.
Disadvantages:1. Can be expensive to set
up and maintain.2. A virus can spread to all
computers if one is infected.
3. Can be more prone to hacking as there are multiple access points.
4. If the file server goes down, the entire network can go down if it is a star network.
Cabled LANCabled LAN is used to connect a network device
to multiple network devices and depending on the size of the network, different cables are used which are:
1. Twisted pair: is a form of wiring in which two conductors are twisted and this is usually used for home and office uses.
2. Coaxial cable: uses electromagnetic waves inside the cable and is usually used for televisions.
3. Optical fiber: is the latest form of cabled LAN and uses light impulses to transfer information.
LAN TopologiesThere are different types of
network called topologies:1. The bus topology2. The ring topology3. The star topology
RouterA router is a device that
transfers data between computer networks.
WANThe WAN is a communication
network that covers a broad area.For example between countries,
regional area and more.
ClientsA client is an application that can
access a service which is made available by a server.
The two main types of clients are:
1. The Fat client: Performing the bulk of data processing operations itself.
2. The Thin client: Mostly uses the resources of the hosts.
ServerA server is a computer program
running to serve the requests of the clients.
For example a server in a school would be controlling and storing the data.
Client/server networkA client/server network is one
which deals with the requests of their clients and the servicers of the servers to transfer information and more.
Peer to Peer NetworkA peer to peer network is one in
which each computer in the network can act as a client and a server. These can be for allowing shared access to files and peripherals.
Bibhttp://
fcit.usf.edu/network/chap1/chap1.htm
http://en.wikipedia.org/wiki/Peer-to-peer
http://en.wikipedia.org/wiki/Client%E2%80%93server_model
http://education.mu/forum/index.php?topic=306.0
http://en.wikipedia.org/wiki/Networking_cables