IP & Domain Name

What is IP?
IP is Internet Protocol. It is defined for INTERNET. In the internet, every computer connected to internet has uniqui ID number. We call it IP. It was seperated by dot ( . ) and combined by 4 numbers. Each number's value is between 0 and 255. Like the follow:
168.95.1.1 correct
66.94.230.34 correct
61.270.20.17 wrong

continue....