三级网络技术笔记

在网络工程通讯系统中，计算机及网络设备之间需求传输介质来进行信息与数据的连接与传递。假如将网络上钩算机比作货站，而数据信息是汽车的话，那么，网络传输介质即是不可短少的公路。如今计算机数据通讯的传输介质包括有线介质（双绞线、铜轴电缆、光纤）和无线介质（无线电波、红外线和微波）两种，

(In a network engineering communication system, a transmission medium is required between computers and network devices to connect and transmit information and data. If the computer on the network is compared to a cargo station, and the data information is a car, then the network transmission medium is an indispensable road. Nowadays, the transmission media of computer data communication include wired media (twisted pair, copper coaxial cable, optical fiber) and wireless media (radio waves, infrared rays and microwaves).)

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