TYPES OF NETWORKS

TYPES OF NETWORKS
 LAN:-local area networks are used to connect networking devices that  are in a very close geographical such as a floor  of a building , a building it self or with in campus.
MAN:- metropolitan area network are used to connect network devices that may span around a city.
WAN:-wide area network which connects two or more LAN’S present  geographical locations.

BASIC REQUIRMENTS TO FORM A NETWORK:-
·       NIC(network interface card) also called LAN card.
·       Media.
·       Network devices.(hub, switch, router, etc..
·       Protocol’s.
·       Logical address(IP address).
NIC:- NIC/ LAN card, NETWORK adapter,RJ-45port,Ethernet catd
    It has 8 pin.
Physical address/hardware address.
MAC(media access control).
Mac is 12hex/48bits.
Ex:- 0A-45-9C-65-7F-6D
   Oa-44-9c is the manufacture id and   66-7f-3d is the serial number.
To get mac address in windows in cmd window ‘getmac’  or ‘ipconfig’
In linux to get mac address type in cmd window ‘ifconfig’
NIC is a interface  between the computer and the network.
Ethernet cards have a unique 48 bit address called MAC address(media access control).
MAC address is also called as physical address (or )hardware address.
The 48bit MAC address  is represented as 12 hexadecimal   numbers.
Ex:- 10-16-DF-FC-45-3F.


Network cards are available in different speed.
·       Ethernet (10MBPS)
·       Fast Ethernet (100MBPS)
·       Gigabit Ethernet (1000MBPS)

NETWORKING



Network
Inter connection of two or more  devices is called as a network.
The communication b/w two or more inter connected devices is called the networking.
An inter network is a connection of two or more network’s. It means  communication between networks.
Need for computer network
Computer network allows you to share data with other users in a network, for example, a company having a number of computers which are connected in a network.  Computer network will enable the user to share files and folders and get synchronized with other users.
Computer network also allows the user to share resources such as printers and faxes. Printer can be installed on one computer and can be accessed by other user.




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