Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 Chapter 8 Chapter 9 Chapter 10 Chapter 11 Chapter 12 Chapter 13 Chapter 14
Chapter 1

The Internet vs. The World Wide Web

Two terms people confuse constantly — here is the clean distinction.


Two different things

The InternetThe World Wide Web
Global physical network infrastructureA service that runs on top of the Internet
Routers, cables, satellites, wireless towersSystem of linked pages via HTML, URLs & HTTP
Protocols: TCP/IP, UDP, FTP, SMTP, DNSTechnologies: HTML, CSS, JavaScript, REST APIs
Enables email, VoIP, gaming, IoT, streamingAccessed through a web browser
Developed in the 1960s–1980s (ARPANET era)Invented by Tim Berners-Lee in 1989

Key point: the Internet is the infrastructure (roads). The Web is a service running on it (cars). Not all Internet traffic is Web — email, VoIP and gaming use the Internet but not necessarily the Web.