WWW通常称为网络。 web是一个世界各地的计算机网络。 电脑在Web上使用标准语言沟通。 万维网联盟（W3C）制定了Web标准
WWW 代表 World Wide Web(万维网)
万维网常常被称为 网络
网络是世界各地的计算机网络
网络中的所有电脑可以相互沟通
所有的计算机使用HTTP的通信标准
信息存储的文件称为网页
Web页面存储在Web服务器上。
阅读网页的计算机被称为Web客户端
Web客户端查看网页的程序称为Web浏览器
流行的浏览器有Internet Explorer，Chrome和火狐等。
一个浏览器通过请求从服务器上获取的网页数据
Principles, Technologies, and Methods of Geographic Information Systems 102
In recent years, Geographic Information Systems (GIS) have undergone rapid development in both theoretical and practical dimensions. GIS has been widely applied for modeling and decision-making support across various fields such as urban management, regional planning, and environmental remediation, establishing geographic information as a vital component of the information era. The introduction of the “Digital Earth” concept has further accelerated the advancement of GIS, which serves as its technical foundation. Concurrently, scholars have been dedicated to theoretical research in areas like spatial cognition, spatial data uncertainty, and the formalization of spatial relationships. This reflects the dual nature of GIS as both an applied technology and an academic discipline, with the two aspects forming a mutually reinforcing cycle of progress.