Functions of network layers

OSI reference model

OSI reference modelOSI MODEL

OSI MODEL OR The Open Systems Interconnection model

It is a way of WE sub-divide a communications system into smaller parts called layers.

A layer is a collection of conceptually similar functions that provide communication between the  layers above and below it.

Share Files between xp computers

For connectivity setting read here
Go to my computer then go to the properties of the drive you want to share on a network or other computer .
Go to properties click on sharing tab then see the following configurations

if you understand the security risks and 

but want to share drive with out  

ruuning the wizard click here

then a Pop up will appear

if you enable sharing on this computer without using the network  setup wizard

Go to my networking places then click Work group.Computer will search for network devices for a moment
then the computer in a home group  that are connected  will appear.click any computer it will show you the shared device.click it and enjoy

How to make Lan between two computers

Home network
Take a crosss cable.A cross cable has 2 connectors on both sides.connect one with the Computer A and other with the computer B.These connectors are called RJ45 

Add caption

NOW assign the Ip address  by going into My Network Places.Go to my network connections .you will see a network connection.click it go to properties then go to TCP/IP Assign IP Address: 10.1.1.1
Subnet mask: 255.255.255.0
Gateway: null
DNS Servers:null
press ok.
Now come to computer B.Go to my network places go the connection properties go to TCP/IP Assign the following address 
IP Address: 10.1.1.2
Subnet mask: 255.255.255.0
Gateway: null
DNS Servers:null
press ok.
1 now go to Start 
2 click Run

3 write cmd(A command prompt will open)

4 write ping 10.1.1.2 from the computer A or 10.1.1.1 from the computer B
if the connection is successful it will show reply from (IP).
If connection is not established it will show request time out.
Share files from PC A to PC B and enjoy.Learn how to share click here

What is Networking

Networking is defined as connectivity of two or more devices so they can communicate with each other.
A connectivity can be between two things that are laying near to each other in a room or between department buildings or between countries.