what is Internet and Intranet, And also discuss the similarities and differences between them?

https://www.computersprofessor.com/2017/08/what-is-internet-and-intranet-and-also.html
Internet
It
is a worldwide/global system of interconnected computer networks. It uses the
standard Internet Protocol (TCP/IP). Every computer in Internet is identified
by a unique IP address. IP Address is a unique set of numbers (such as
110.22.33.114) which identifies a computer’s location.
A
special computer DNS (Domain Name Server) is used to provide a name to the IP
Address so that the user can locate a computer by a name. For example, a DNS
server will resolve a name https://www.ComputersProfessor.com to a particular IP address to uniquely
identify the computer on which this website is hosted.
Internet is accessible to every user all over the world.
Intranet
Intranet
is the system in which multiple PCs are connected to each other. PCs in
intranet are not available to the world outside the intranet. Usually each
organization has its own Intranet network and members/employees of that
organization can access the computers in their intranet.
Each computer in Intranet is also identified by an IP Address
which is unique among the computers in that Intranet.
Similarities between
Internet and Intranet
·
Intranet uses the internet protocols such as TCP/IP and FTP.
·
Intranet sites are accessible via the web browser in a similar way
as websites in the internet. However, only members of Intranet network can
access intranet hosted sites.
·
In Intranet, own instant messengers can be used as similar to
yahoo messenger/gtalk over the internet.
Differences between Internet
and Intranet
·
Internet is general to PCs all over the world whereas Intranet is
specific to few PCs.
·
Internet provides a wider and better access to websites to a large
population, whereas Intranet is restricted.
·
Internet is not as safe as Intranet. Intranet can be safely
privatized as per the need.