In a nutshell
An IP address is a unique identifier assigned to each device connected to a computer network. An IP address uniquely identifies a device on the internet the same way that a home address uniquely identifies a home.
The IPv4 address format
An IPV4 address looks like this:
It’s 32 bits in length. It contains four sections (octets), where each octet contains 8 bits.
Each octet can be a value between 0-255 (255 is the max number that can be represented by 8 bits).
The address is separated into two parts: network and host: