东莞理工学院试题专业英语作业题.doc

1.1Many of the products and services in modem society are based upon the work of electrical engineers and computer scientists. The tremendous reduction over the last decade in the cost of digital electronic devices has led to an explosive growth in the use of computers and computation. At the same time, our increased understanding of computer science has made possible the development of new software systems of increased power, sophistication, and flexibility.

翻译：现代社会的许多产品和服务都是建立在电气工程师和计算机科学家的工作

基础之上。在过去几十年屮，数字电子器件成本的大幅下降已经带来了计算机应

用迅猛的增长。与此同吋，人们对计算机科学认识的提高使得开发新的更强大、

更复杂、更灵活的软件系统成为可能。

1.4Memory is the component of a computer(and an embedded system) that is used to store and retain information. There is always need to store information in an embedded application, so there will always be some type of memory in the design. Many types of memory are available, thus there are many choices for embedded customers.

翻译：存储器是计算机和嵌入式系统小用来保存信息的部件。在嵌入式应用屮需要存储信息，影驰设计屮总含有某种类型的存储器。现在有许多种可以利用的存储器件，因此对于嵌入式用户存在多种选择。

1.6现代电子系统的数字化程度越来越高，复杂程度也极高，要死没有超大规模芯片技术，只是无法想象的。闲的电子系统太复杂了，以致其设计原理很像大型软件系统设计。计算机科学和电子系统设计所需的背景知识存在许多相同Z处，而现代电子系统■…这个不断扩展的工程领域…也离不开计算机辅助设计。

番羽译：Modern electronic systems are increasingly digital in nature, exceedingly complex,and would be inconceivable without todays VLSI chip technology. Indeed,such systems are so complex that the principles of their design bear great similarities to system design require similar backgrounds in many respects, and computer aids to design are essential in this ever-expanding domain of engineering. 1.10在计算机系统屮，存储器是用于程序运行和数据存储的部件。随机存取存储器芯片构成了计算机主存储器。可用存储器的容量决定了运行程序的大小和一次能否运行多个程序。主存储器只是暂时储存数据。一旦关闭计算机，数据就丢失To它不同于内部只读存储器和外部存储器，后者的数据保存时间更为长久。只读存储器屮包含着计算机的核心程序。总之任何以机器可读方式存储数据的设备都是存储器。

爲羽译：Memory is the part of a computer system that is used to run programs and store data. The main memory is built from Random Access Memory(RAM) chips. The amount of memory available determines the size of programs that can be run, and whether more than one program can run at a time. Main memory is temporary, and the internal Read Only Memory ( ROM ), and external storage. ROM contains the computer\ essential programs In the general sense, Memory can be any device that can hold data in machine-readable format.

2.2The same definition of DRcan be used for an op amp, and the maximum output voltage swing equals Voumax. This output voltage swing is defined as the maximum output voltage the op amp can achieve (Voh) minus the minimum output voltage the op amp can achieve (Vol). Voh and Vol are easily obtainable from an op amp IC data sheet.