IP address helps to recognise the systems it is unique 32bits address assign to the machine .
Dynamic host control protocol (DHCP) allows your machine to assign an IP address automatically you do not need to assign it manually like Static IP address.
Click on Network and Sharing Center and click on Local area connection
Click on properties and choose IPv4 address
In my case I have assigned randomly IP address just to make you understand how to do this.
Click on Ok And you’re done.