ComputerEnglishTest

Computer English Test

Name: Student No.:

I．Fill in the blanks.

(1) A digital computer is generally made up of five distinct elements: a CPU, input devices, memory storage devices, output devices and a bus.

(2) The value of prefix “mega” used for computer science is 1024 . (3) A program is a sequence of instructions that can be executed by a computer.

It can either be built into the hardware or exist independently in the form of software. (4) The smallest unit of information handled by a computer is bit, which is the abbreviation of

binary digit. A group of eight bits makes up a(n) byte , which is short for binary term.

(5) The function of computer hardware is typically divided into three main categories. They are

input, output and storage .

(6) Video displays commonly take one of two forms. They are CRT-based screens and

LCD-based screens.

(7) An operating system is the basic software that controls a computer.

(8) The most widely used operating system in the world is Window System, which

provides users with a graphical user interface.

(9) We can classify programming languages under two types: low-level languages and

high-level languages.

(10) The most widely used LAN system is Ethernet , which adopts a form of access known

as CSMA-CD.

II. Multiple choices

(1) A computer system user generally more cares for b,c,d . a. physical size of the computer c. speed of computation a,c,d . a. microcomputer a. CPU a. FIFO

b. minicomputer b. main memory b. LIFO b. security b. Solaris

c. mainframe c. input devices c. queue

d. supercomputer d. output devices

d. built into their circuitry d. enterprise management d. HP-UX

(3) The basic hardware components of any computer include a,b,c,d . (4) The attributes of the stack are a .

(5) Windows 2000 has the key technologies, they are a,b,c,d . a. active directory a. Windows

c. flat directory

(6) We can find a variety of UNIX system, they are b,c . c. AIX

(7) We can use Microsoft Word to a,b,d .

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b. storage size

d. efficiency of the computer

(2) According to the physical size of computers we can classify the computers into

a. access Web pages

b. insert a hyperlink to a Web page d. retrieve pictures from other Web pages c. inheritance

d. polymorphism

c. create a 3-D column chart a. encapsulation

(8) C++ include the following pillars: a,b,c,d .

b. data hiding

(9) SQL Server a,c .

a. is a client/server RDBMS

b. consists of the physical storage of data d. is a file server c. tools

d. elements

c. consists of the SQL Server’s services a. programming a. data structure

b. procedures

(10) Software engineering encompasses the following key b,c,d . (11) (10) Software design focuses on a, b,c,d . b. software architecture c. document d. procedural detail

b. reliable

d. straightforward to maintain c. Analysis c. ring

d. maintenance d. mesh d. data

(12) A well-designed system should be a,b,c ,d . a. easily understood

c. straightforward to implement a. design a. star

(13) The classic life cycle of software engineering includes a,b,c,d . b. coding b. bus

(14) There are several topologies in LAN, they are a,b,c . (15) A computer system is a collection of a,b . a. hardware

III. Translate the following terms or phrases from English into Chinese. (1) instruction set (2) address bus

指令集 地址总线

b. Software

c. persons

(3) random access memory (4) object-oriented language (5) assembly language (6) system call

(7) hierarchical memory (8) software engineering (9) software life cycle

随机存取存储器 面向对象语言 汇编语言 系统调用 软件工程 分层存储器 软件生存周期

系统工程与分析 (10) system engineering and analysis IV. Translate the following abbreviated terms by English.

(1) Windows NT Facing the workstation network server and large computer network operating system

(2) BIOS

Basic Input Output System

(3) DBMS (4) MIS (5) SQL

system for database management Management Information System Structured Query Language 2

(6) API (7) LAN (8) PSTN (9) HTTP

Application Programming Interface Local Area Network

Public Switched Telephone Network HyperText Transfer Protocol (10) TCP/IP Transmission Control Protocol/Internet Protocol V. Translate the following passage from English into Chinese:

It is recognized that precise (although not necessarily formal) specification is an essential part of the software design process and that software design is an iterative, multi-stage activity which cannot be represented in any single notation. Accordingly, a number of design notations such as data flow diagrams, HIPO(Hierarchical Input-Process-Output) charts, structure diagrams and design description languages have been developed, which are superior to flowcharts for expressing software designs.

Given a requirements definition, the software engineer must use this to derive the design of a programming system which satisfies these requirements. This derivation is accomplished in a number of stages:

(1) The subsystems making up the programming system must be established.

(2) Each subsystem must be decomposed into separate components and the subsystem specification established by defining the operation of these components.

(3) Each program may then be designed in terms of interacting subcomponents.

(4) Each component must then be refined. This normally entails specifying each component as hierarchy of subcomponents.

(5) At some stage of this refinement process, the algorithms used in each component must be specified in detail.

它是公认的，精确的（虽然不一定正规）必不可少的部分软件的设计过程，软件设计是一个迭代的，多阶段的活动，不能代表任何单一的符号。

因此，一些设计符号的数据流图，黑豹（等级输入过程产出）图，结构图和设计说明书语言已经制定，这是优于流程图表示软件设计。

给定一个需求定义，软件工程师必须使用这个计算设计的一种编程系统，满足这些要求。

该理论是在一个阶段完成：

1.子系统组成的编程系统必须建立

2.各子系统必须分解成独立的组件和子系统规范建立了确定这些组件的运作 3.每一个程序然后可以设计方面的相互作用的子

4.每个组件都必须加以提炼。这通常需要指定每个组件层次的子 5.在某些阶段，这种精致的过程，该算法中使用的每个组件必须指定详细

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