计算机的总线包含地址总线、数据总线和控制总线。某计算机CPU有16条地址总线，则该计算机最大的寻址空间为(2)B，若该CPU寻址外部的数据存储器时，第 16条地址线始终为高电平，则此数据存储器的地址空间为(3)B。

(74) systems perform. basic tasks, such as recognizing input from the keyboard, sending output to the display screen, keeping track of files and(75)on the disk, and controlling peripheral devices such as disk drives and printers.

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The Assembly Language is often used to distinguish(73)machine-readable information from textual human-readable information.

The major technical areas of computer security are usually represented by the initials CIA(71)，integrity，and authentication or availability．

Like personal computers，most workstations are(72) computers．

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Windows XP是一种(56)操作系统，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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