《专业英语》课程作业.docx

PAGE1 / NUMPAGES1 《专业英语》课程作业 步京侄宛a琴  《专业英语》课程作业  学生姓名____________________________  学号 __________________________  院系 _________________________  专业 __________________________  任课教师____________________________  二0一五年六月  一、英译中(英文科技资料翻译)  原文：  An operating system is the software which acts as an interface between a user of a computer and the computer hardware.The purpose of an operating system is to provide an environment in which a user may execute program. The primary goal of an operating system is thus to make the computer system convenient to use. A secondary goal is to use the computer hardware in an efficient way.  We can view an operating system as a resource allocator. A computer system has many resources which may be required to solve a problem: CPU time, memory space, , input/output(I/O) devices, and so on.The operating system acts as the manager of these resources and allocates them to specific programs and users as necessary for their tasks. Since there may be many, possibly conflicting, requests for resources, the o/s must decide which requests are allocated resources to operate the computer system fairly and efficiently. Multimedia means, from the user perspective, that computer information can be represented through audio and/or video, in addition to text, image, graphics and animation .  The integration of these media into the computer provides additional possibilities for the use of computational power currently available (e.g., for interactive presentation of huge amounts of information ). Furthermore, these data can be transmitted though computer and telecommunication networks, which implies applications in the areas of information distribution and cooperative work.Multimedia provides the possibility for a spectrum of new applications, many of which are in place today.  A multimedia system distinguishes itself from other systems through several properties. We elaborate on the most important pro