So they can know who it is going to . You cannot send an email without knowing who it goes to :)
Answer:
i dont know but thanks for marks
The part of the computer that contains the brain is called the motherboard.
Answer:
Unique 32-bit number assigned to every machine on the internet
Explanation:
Internet Protocol is a numerical representation that uniquely identifies a device on a network, like Internet for instance. An IP address is an address used in order to uniquely identify a device on an IP network. The address is made up of 32 binary bits, which can be divisible into a network portion and host portion with the help of a subnet mask.
An IPv4 address contains 4 octets, so it's a total 32 bits long while addresses in IPv6 are 128-bits long.
