CHARACTERSTICS OF COMPUTER NETWORK


§  Share Resources from one computer to another

§  Create files and store them in one computer, access those files from the other computer(s) connected over the network

§  Connect a printer, scanner, or a fax machine to one computer within the network and let other computers of the network use the machines available over network.

Following is the list of hardware’s required to setup a computer network.

§  Network Cables

§  Distributors

§  Routers

§  Internal Network Cards

§  External Network Cards

Network Cables:

§  Networking cables are networking hardware used to connect one network device to other network devices or to connect two or more computers to share printer, scanner etc.

§  Network Cable is the medium through which information usually moves from one network device to another.

Distributors:

§  A computer can be connected to another one via a serial port but if we need to connect many computers to produce a network, this serial connection will not work.

§  The solution is to use a central body to which other computers, printers, scanners etc. can be connected and then this body will manage or distribute network traffic.

Routers:

§  A router is a type of device which acts as the central point among computers and other devices that are part of a network.

§  A router is equipped with holes called ports and computers and other devices are connected to a router using network cables. Now-a-days router comes in wireless modes using which computers can be connected without any physical cable.

Network Cards:

§  Network card is a necessary component of a computer without which a computer cannot be connected over a network.

§  It is also known as network adapter or Network Interface Card (NIC).

§  Most branded computers have network card pre-installed.

§  Network cards are of two types:

·         Internal Network Cards

·         External Network Cards

Internal Network Cards:

§  Motherboard has a slot for internal network card where it is to be inserted.

§  Internal network cards are of two types in which first type uses Peripheral Component

§  Interconnect (PCI) connection while the second type uses Industry Standard Architecture (ISA).

§  Network cables are required to provide network access.

External Network Cards:

§  External network cards come in two flavours: Wireless and USB based.

§  Wireless network card need to be inserted into the motherboard but no network cable is required to connect to network.

§  USB card are easy to use and connect via USB port. Computers automatically detect USB card and can install the drivers required to support the USB network card automatically.

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