Which of the following is not a part of the Internet?

World Wide Web
Email
CD-ROM
HTTP

The correct answer is C. CD-ROM.

The Internet is a global system of interconnected computer networks that use the standard Internet protocol suite (TCP/IP) to serve billions of users worldwide. It is a network of networks that consists of millions of private, public, academic, business, and government networks, of local to global scope, that are linked by a broad array of electronic, wireless, and optical networking technologies. The Internet carries an extensive range of information resources and services, such as the inter-linked hypertext documents and applications of the World Wide Web (WWW), electronic mail, telephony, and file sharing.

The World Wide Web (WWW), commonly known as the Web, is a system of interlinked hypertext documents accessed via the Internet. With a web browser, one can view web pages that may contain text, images, videos, and other multimedia and navigate between them using hyperlinks.

Email is a method of exchanging digital messages from one computer user to another over a computer network. When email was first developed in the 1960s, it was a text-only system. Over time, it has evolved to include multimedia messages, such as images, videos, and audio files.

HTTP, or Hypertext Transfer Protocol, is the set of rules that govern how data is exchanged between a web server and a web browser. It is the foundation of the World Wide Web.

A CD-ROM, or Compact Disc Read-Only Memory, is a data storage medium that can be read from but not written to. It is a type of optical disc that was first developed in the 1970s. CD-ROMs are typically used to store software, music, and video files.

While CD-ROMs are a popular way to store data, they are not a part of the Internet. The Internet is a network of networks, while CD-ROMs are a type of storage medium.