User:M Farhan Qayyum

Networking
Definition: called network.
 * 1) 1.	The ability to expend a single computer to other computer is called network.
 * 2) 2.	in a network two are more computer connect to gather for sharing of data\information is

The network interface card: The network interface card also called a (N I C) is used for interface with two or more pc’s.

Communications: When two or more pc’s share data\information with each other this is called communication. Services: Services are called sharing of different hard ware Like CD Rome, Printer, Scanners etc.

Three Types of Network

Local area network (L A N) Wide area network (W A N) Metro politic area network (M A N)

Local area network (L A N): A network which covers limited distance area like single room, building or two building is called Local area network (L A N). In this network all computer sharing data\information and services etc.

Wide area network (W A N): In this types of network computer are connect in wide area through phone line or microwave. Which cover’s haeger geographical area is called Wide area network(W A N).

Metro politic area network (M A N): Metro politic area network (M A N) from one city to other city connect is called Metro politic area network (M A N).

Two Types of Networking

Peer to peer network(workgroup). Server base network(Domain).

Peer to peer network(workgroup): In computer network a workgroup is collection of computer on a local area network that share a common resources and responsibilities. Workgroup provide easy sharing of file ,printer and other resources. Server base network(Domain): Domain name is an identification label defines a realm administrative autonomy, authority or control in the internet. Domain name are also host name that identify internet protocol.

Domain Name System (DNS): The DNS translates Internet domain and host names to IP addresses. DNS automatically converts the names we type in our Web browser address bar to the IP addresses of Web servers hosting those sites.

Dynamic Host Configuration Protocol: The Dynamic Host Configuration Protocol (DHCP) is an auto configuration protocol used on IP networks. Computers that are connected to IP networks must be configured before they can communicate with other computers on the network.

Default gateway: In computer networking, a gateway is a node (a router) on a TCP/IP network that serves as an access point to another network.

IP Address: An internet protocol address is a numerical label assigned to each device participating in a computer network that internet protocol for communication. An ip address server two principal host or network interface identification and location addressing.


 * == Class’s of IP address ==

A.B.C.D.E class’s Class’s A IP 1.0.0.1 to 126.255.255.254 Supports 16 million hosts oh each 127 networks. Class’s B IP 128.1.0.1 to 191.255.255.254 Supports 65,000 hosts on each of 16,000 network.

Class’s C IP 192.0.1.1 to 223.255.254.254 Supports 254 hosts on each of 2 million network.

Class’s D IP 224.0.0.0 to 239.255.255.255 Reserved for multicast groups.

Class’s E IP 240.0.0.0 to 254.255.255.254 Reserved source’s.