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一、名词解释 (7.1)1.peripheral外围设备 2.process speed处理速度 3.flexible or floppy plastic disks软键盘 4.discrete data离散数据 5.storage capacity存储量 6.work station工作站 7.touch screen触摸屏 (8.1)1.radio frequency射频 2.elecreomagnetics waves电磁波 3.audio signal音频信号 4.thermocouple thermometer温度计 5.ice bath冰点槽 6.digital display register数字显示器 (8.2)1.controlling variable控制量 2.controlled variable被控量 3.set point设定值 4.reference value参考值 5.sighe tube指示管 6.tracking control system跟踪控制系统 7.robot arm机械臂 8.external influences外部扰动 9.programmanle logic controller可编程逻辑控制器 10.continuous control连续控制 11.timer initiated actions定时器触发动作 12.control loop控制回路 13.sampling intervals采样周期 14.real-time control实时控制 15.priority control优先级 16.limit switch限位开关 17.deductive reasoning演绎推理 18.predicate logic谓词逻辑 19.TSP--travelling salesman is problem旅行商问题 20.information retrieval信息检索 21.NP-complete—Non-deterministic Polynomial-complete(NP 完全问题) 二、translate （7.1）1.A computer is a fast and accurate symbol manipulating system that is organized to accept, store, and process data and produce output results under the direction of a stored program of instructions, this section explains why a computer is a system and how a computer system is organized. 计算机是一种系统化的用来接收、存储和处理数据，并在已有程序制定下产生输出结果的快速精确的符号运算系统，这部分我们解释为什么一台计算机就是一个系统和一个计算机系统是如何系统化的。 2.Devices that read data magnetically recorded on specially coated plastic disks are popular. 那种可以读取磁化在有特殊镀层的塑料磁带或软磁盘上的数据的设备很流行。 3.There are three main sections found in the CPU of a typical computer: the primary storage section, the arithmetic-logic section, and the control section. But these three sections aren’t unique to personal computer: they are found in CPUs of all sizes. 一个典型的计算机系统的cpu有三个重要部分：主存储部分，算术逻辑运算部分和控制部分。但这三部分并不是唯一对于个人计算机而言的，他们存在于各种型号的中央处理器中。 4.The input/output and secondary storage units shown are sometimes called peripheral devices(or just peripherals).This terminology refers to the fact that although these devices are not a part of the CPU, they are often located near it.