Which of the following is not a component or service that is part of the Internet ecosystem itself? Choose the option that stands apart from core Internet services.

Introduction / Context:
Understanding the difference between Internet services and unrelated storage media is essential for digital literacy. This question asks you to identify which option does not belong to the set of Internet components/services.

Given Data / Assumptions:

• Options include two services, one protocol, and one physical storage medium.
• Task: select the item that is not part of the Internet stack or its services.

Concept / Approach:
The Internet provides services (like the Web and email) via protocols (like HTTP, SMTP). A CD-ROM is an optical storage medium used for offline data distribution and is not an Internet service or protocol.

Step-by-Step Solution:

Verification / Alternative check:
Any example of Internet use (web browsing or email) requires network connectivity and protocols, whereas a CD-ROM can be used entirely offline on a standalone computer.

Why Other Options Are Wrong:

• World Wide Web: Core Internet service.
• Email: Core Internet service.
• HTTP: Protocol powering the Web, part of the Internet stack.

Common Pitfalls:
Confusing 'things used with computers' (like storage media) with Internet technologies. Only items that rely on network protocols and connectivity qualify as Internet components or services.

Final Answer:
CD-ROM