- Internet is the set of all worldwide computer networks.
- Intranet is a network created for internal communications of a company, used to convey information for internal use profits to the business.
- Extranet is an Internet network, which has the purpose of interconnecting local networks in a geographically protected.
![ICT Communications Division ICT Communications Division](images/sezione/styles/4/goccia_rifl_140.png)
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