Under modem network environment network is used more and more widely, so this problem is becoming more immence .

在现代网络环境下，计算机网络应用更加广泛，这一问题也就更加迫切。

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For example, consider a typical home network with four computers connected to a wireless access point (WAP) or router with an outbound connection through a cable or DSL modem.

例如，考虑一个典型的家庭网络，其中有四台计算机连接到无线访问点(WAP)，或者通过电缆或dsl调制解调器向外连接的路由器。

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B: That's easy, a modem or a network card will do the job.

那很简单，一个调制解调器或一个网络卡就可以了。

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Modem and network interface are included, too, along with a really noisy cooling fan.

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