An Internet service provider (ISP) is an organization that provides myriad services related to accessing, using, managing, or participating in the Internet. ISPs can be organized in various forms, such as commercial, community-owned, non-profit, or otherwise privately owned. Internet services typically provided by ISPs can include internet access, internet transit, domain name registration, web hosting, and colocation. History. The Internet (originally ARPAnet) was developed as a network between government research laboratories and participating departments of universities.
https://en.wikipedia.org/wiki/Internet_service_provider