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儿子小时候玩过一套遥控有轨车。他要先搭好环形轨道,在轨道上建好车站,然后通过遥控使小车从一个小站跑到另一个小站。这个游戏也可以说是互联网的雏形。从设备层面上说,互联网是通过有线和无线的方式把位于全球不同地点的许多计算机连成一体的一个大网络。把网络连线比作公路,计算机就是公路上的车站;网络信息就像公路上跑的汽车,它们在上网人的控制下从一台计算机传输到另一台计算机。互联网可以不断扩大和延伸,就像公路和车站可以不断新建、翻修和延伸一样。从功能上可以把互联网上的计算机分成两大类:服务器和客户机。服务器就像24小时工作的大车站,随时供各种车辆进进出出;客户
Son childhood play a remote control rail car. He had to set up a circular orbit, build a station on the track, and then by remote control to make the car from one station to another station. This game can also be said that the prototype of the Internet. At the device level, the Internet is a large network that connects many computers in different locations around the world in a wired and wireless manner. By comparing network connections to roads, computers are stations on the road; network information is like a car running on a highway that is transmitted from one computer to another under the control of an Internet user. The Internet can continue to expand and extend, just as roads and stations can continue to be built, renovated and extended. Functionally, computers on the Internet can be divided into two main categories: server and client. The server is like a 24-hour work station, ready for all kinds of vehicles in and out; customers