The term “internets” (plural) is sometimes used to refer to multiple separate and distinct networks that are not directly connected to each other. These networks may use different communication protocols or technologies, and they do not form a single, unified network like the global internet. Instead, they remain separate entities with their own infrastructure and rules.
For example, within an organization, there might be multiple “internets” that are isolated from each other. Each department or division may have its own network, and these networks might not be interconnected. In such cases, they are referred to as internets in the plural form.
It’s important to note that when discussing the “internet” in the singular form, it typically refers to the global public internet, which is a massive interconnected network of networks that spans the globe and uses common communication protocols (like TCP/IP) to enable communication between devices and networks worldwide. The global internet is an example of a single, cohesive internet.