The collection of linked information residing on computers which is accessible through internet is called

The correct option is WWW.

Here is a step-by-step explanation of why this is the correct answer:
The World Wide Web (commonly known as WWW or the Web) is a global collection of information, documents, and other resources linked by hyperlinks and URLs. These resources are stored on computers (servers) worldwide and can be accessed by users over the internet using web browsers.

Let's understand why the other options are not the primary term for this collection:
1. HTTP (Hypertext Transfer Protocol) is the protocol, or set of rules, used to transfer data over the Web. It is not the collection of information itself.
2. HTML (Hypertext Markup Language) is the standard formatting language used to create and structure documents on the Web.
3. URL (Uniform Resource Locator) is the specific web address used to locate a particular resource on the Web.

Therefore, the system of interlinked hypertext documents and information accessed via the internet is defined as the WWW.