In simple word Internet protocol(ip) address a unique number provided to each internet connection or internet connected computer in internet or network which acts as a name of the end user of internet or network. In actuall the ip address are stored in computers as a binary number but it is denoted as a human redable form for example: 192.167.19.18 The ip address is assigned to your computer by your network administrator or your internet service provider. Normally any computer is assigned ip address on two way. One you get a dynamic ip address. Or your ip address changes each times you disconnect and reconnect to the network. and Another is static. Or you get a fixed ip address and it never changes for you. So IP adress is just like a name assigned for the computer so that it can be recognised by you isp or network administrator.