Windows　2000是一种(56)，为了支持网络通信的功能，在它的网络体系中包含了网络API、传输的驱动程序接口(TDI)客户、TDI传送器、NDIS小端口驱动程序和(57)，同时，NDIS库也为(58)的使用提供了函数接口。

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Viruses can't be transmitted by(74)and(75)is not a common route for virus infiltration.

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Software refers to(70). The most important software on any computer is(71).

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CPU doesn't mean(68). On a large computer system, a(69)links external devices to a channel.

Modern computers are electronic and(66)devices. The basic building block of a modem computer is a(67).

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