"深入探讨电子商务：网络结构、协议与技术应用"

The chapter provides an overview of the development and current structure of the Internet, starting with its origin and growth over the years. It explains how packet-switched networks are integrated to create the vast network that is the Internet today. The chapter also covers the functioning of Internet protocols such as email and web protocols, shedding light on how information is transmitted and received over the Internet. Additionally, the chapter delves into Internet addressing and the construction of web domain names, outlining the technical details of how websites are identified and accessed by users. It also explores the history and usage of markup languages on the web, detailing the evolution of technologies like HTML and the role they play in creating and formatting web content. Moreover, the chapter provides insights into the working of HTML tags and hyperlinks, explaining how these elements are utilized to structure and navigate web pages. It also discusses the various technologies employed by both individuals and businesses to connect to the Internet, highlighting the diverse tools and resources available for accessing and utilizing online resources. Overall, the chapter serves as a comprehensive introduction to the fundamental aspects of the Internet, offering a detailed explanation of its components, protocols, and technologies. By expanding on the history and functionality of the Internet, the chapter sets the stage for further exploration of electronic commerce and the various ways in which it leverages the power of the Internet to facilitate transactions and communication in the digital age.