There is no difference in the terms as you asked it. If you are wondering what the difference is between the Internet and an Intranet, the Internet is the World Wide Web, public and available to everyone. An Intranet is a private and usually secure site normally used within one company or groups of companies under the same corporation. The transmission technology is the same for both. A network is a group of computers linked together, and normally all files are accessible to every computer on the network, with most files posted on a specific drive located in the main server. A network of networks, then, would be several networks connected together. Hope this is the answer to your question.