An IP Address or Internet Protocol Address is the numerical representation of where you are connected in the network. It is essential to have some understand of what an IP address is if you are roaming around the internet. This will give you better aware of how internet works and access to different contents.
Easiest way to put it in your mind is just think IP Address as a normal address. IP Address has two parts. The IP and the port just like a normal address which has a street name/number and house number.
We can compare the street number to the IP and house number to the port. That means, as your house is the house number is in the particular street address, your IP address is the port number in the particular IP address. To keep it simple, we use only IP part of IP address usually. You can find your IP from My IP.