一、判断对错1. The software system is the physical equipment that you can see and touch.2. Typically, a data value is set to zero to represent FALSE and 1 value for TRUE.3. In the earliest general-purpose computer, most input and output media were magnetic disks.4. Supercomputers are largest, fastest, and most expensive computer available.5. A computer system consists of hardware system and software system.1. The data bus always receives data from the CPU, and the CPU never reads the data bus.2. Main memory holds whatever programs and data are available for immediate use by theCPU.3. Dynamic RAM does not have to be refreshed.4.Dot-matrix printer work by squirting tiny droplets of liquid ink at the paper.5. The auxiliary memory is very small, relatively expensive, and has very high access speed.1. Shift registers operate in serial fashion all the bits of the word at a time.2. RISC processors have larger instruction sets that often include some particularly complexinstructions.3. SIMD represents an organization that includes many processing units under the supervisionof a common control unit.4. Parallel processing is established by distributing the data among the multiple functional units.5. RISC is a complex instruction set computer.1. A number of different algorithms can exist for solving a computational problem, and each ofthese algorithms could have a same running time complexity.2. The divide-and-conquer algorithm is a bottom-up technique that usually begins by solvingthe smallest subproblems, the dynamic programming solves problems in a top-down fashion.3. An important property of arrays is that their size and shape are constant.4. If all of the elements stored in a list are of the same type, then the list is said to beheterogeneous. However, if different types of elements are stored in the list, then the list is said to be homogeneous.5. A queue is a dynamic set that obeys the LIFO property.1. The computer hardware recognizes only assembly language instruction.2. A program written in the assembly language of one microprocessor can run on a computerthat has a different microprocessor.3. Assembly languages are platform-independent, but high-level languages are notplatform-independent.4. The 4GLs are also called nonprocedural languages.5. Each assembly language instruction corresponds to one unique machine code instruction.二、完形填空Unit 1This chapter introduces digital computer, data types, the evolution of computers, and types of computers. 1 is known to all, it’s hard to find a field in 2 computers are not being used. Digital computer, also called electronic computer or computer, is a digital system that 3 various computational tasks. Digital computers use the 4 number system, which has two digits: 0 and 1.By using various coding 5 , groups of bits can be made to represent not only binary numbers 6 other discrete symbols, such as decimal digits or letters of the alphabet. A computer system consists of hardware system and software system. Programs tell the hardware what to do. 7 software is designed to accomplish real-world tasks in fields such as accounting, entertainment, and engineering. Computers are usually 8 into four broad categories: microcomputers, minicomputers, mainframe computers, and supercomputers. It’s hard to give a 9 definition to each type because computer speeds and storage 10 change rapidly.1. A. As B. It C. As it D. That2. A. what B. which C. where D. when3. A. performs B. carries C. makes D. integrates4. A. decimal B. binary C. Arabian D. American5. A. technique B. technologyC. techniquesD. technologies6. A. instead of B. rather thanC. but alsoD. as well7. A. Application B. System C. Word D. Excel8. A. put B. made C. conducted D. classified9. A. precious B. progress C. proceeding D. precise10. A. capacities B. capable C. capabilities D. capacity1.A2. B3. A4. B5. C6. C7. A8. D9. D 10.AUnit 2A computer system 1 of hardware system and software system. The hardware of the computer is usually divided into three major parts or three 2 subsystems: the CPU, the memory subsystem, and the I/O 3 . The CPU is made up of three major parts, Register Set, the 4 logic unit, or ALU, and Control Unit. It performs many operations and controls computer. Memory is also known as 5 memory or main memory, which is cataloged into two major types of memory: Random Access Memory (RAM) and Read Only Memory (ROM).It refers to the 6 in the computer that hold whatever programs and data are available 7 immediate use by the CPU, along with the program’s data. Computer systems include special hardware 8 between the CPU and peripherals to supervise and synchronize allinput and output transfers. These components are called 9 units because they interface between the processor bus and the peripheral device. The I/O subsystem allows the CPU to 10 with input and output devices.1. A. consists B. makes upC. constitutesD. comprise2. A. premier B. primaryC. preliminaryD. elementary3. A. system B. machine C. subsystem D. device4. A. mathematic B. authorativeC. arithmeticD. authoritative5. A.external B.exterior C. Interior D. internal6. A. circuits B. wires C. lines D. hardware7. A.by B. for C. with D. in8. A.software B. setting C. listing D. components9. A. singular B.dual C. interface D. compact10. A.handle B. interact C. respond D. link1. A2. B3. C4. C5. D6. A7. B8. D9. C 10. BUnit 3In computer engineering, computer architecture is the ___1___ design and fundamental operational structure of a computer system. It is a ___2___ and functional description of requirements, especially speeds and interconnections, and design implementations for the various parts of a computer —___3___ largely on the way by which the central processing unit (CPU) performs internally and accesses addresses in memory. Computer system architecture ___4___ the design of the four ___5___: parallel processing, pipelining, vector processing and RISC. Parallel processing system is used to provide simultaneous data-processing tasks for the purpose of increasing the ___6__ speed of a computer systemand is able to perform ___7___ data processing to achieve faster execution time. A pipeline is a set of data processing elements connected in series, so that the output of one element is the input of the next one. The elements of a pipeline are often ___8___ in parallel or in time-sliced fashion. A vector processor, is a CPU design that is able to run mathematical operations on multiple data elements simultaneously. Computers with vector processing capabilities are in demand in 9___ applications. RISC processors have fewer and __10___ instructions than CISC processors. As a result, their control units are less complex and easier to design.1. A. lastest B. conceptual C. ideal D. simple2. A. plan B. design C. blueprint D. concept3. A. relying B. depending C. attaching D. focusing4. A. refers B. speaks C. involves D. interacts5. A. ingredients B. types C. kinds D. lists6. A. computational B. computerC. computationD. computing7. A. current B. compoundC. concurrentD. massive8. A. displayed B. carriedC. accomplishedD. executed9. A. special B. specialized C. specific D. especial10. A. simple B. simplifying C. singular D. simpler1. B2. C3. D4. C5. A6. A7. C8. D9. B 10.D Unit 4Algorithms are essential to the way computers process information, because a computer program is 1 an algorithm that tells the computer what specific 2 to perform in certain order in order to carry out a speci fied task, such as calculating employees’ paychecks or printing students’ report cards. Thus, an algorithm can be considered to be 3 sequence of operations that can be performed by a turning-complete system. In fact, a data structure is a way of 4 data in a computer so that it can be used efficiently. Often a carefully 5 data structure will allow the 6 efficient algorithm to be used. The choice of the data structure often begins from the choice of an 7 data type.A well-designed data structure allows a variety of critical operations to be performed, using as few resources, both execution time and memory space, as possible. Data structures are implemented by a 8 language as data types and the references and operations they provide. Moreover, different kinds of data structures are 9 to different kinds of applications, and some are highly specialized to certain tasks. For example, B-trees are particularly well-suited for implementation of databases, 10 networks of machines rely on routing tables to function.1. A. essentially B. essential C. partially D. mainly2. A. methods B. steps C. plans D. exercises3. A. some B. a C. the D. any4. A. receiving B. storing C. input D. output5. A. chosen B. madeC. programmedD. picked6. A. very B. most C. more D. less7. A. abstract B.concrete C. special D. certain8. A. basic B. runningC. programmingD. advanced9. A. comforted B. suited C. compared D. hooked10. A. therefore B. with C. when D. while1. A2. B3. D4. B5. A6. B7. A8. C9. B 10. DUnit 5A total computer system includes both hardware system and software system. Hardware consists of the 1 components and all associated equipment. Software refers to the programs that are 2 for the computer. It is possible to be familiar with various3 of computer software without being concerned with details of how the computer hardware operates.A programming language is a language used to write computer programs, which involve a computer 4 some kind of computation or algorithm and possibly control over 5 devices such as printers, robots, and so on. Programming languages differ from 6 languages in that natural languages are only used for interaction between people, while programming languages also allow humans to communicate 7 to machines. Some programming languages are used by one device 8 control another. A prominent 9 of programming languages is to provide instructions to a computer. Thousands of different programming languages have been 10 , and new languages are created every year.1. A. mental B. possible C.essential D. physical2. A. design B. spoken C. writtenD. made3. A. parts B. kinds C.types D. aspects4. A.performed B. to performC. performingD. performs5. A.intenal B. external C. inside D. outside6. A. natural B. Human C. computer D. artificial7. A.orders B. instructions C. codes D. calls8. A. to B. for C. with D. over9. A. show B. research C. purpose D. study10. A. creatingB. created C. to create D. creation1. D2. C3. D4. C5. B6. A7. B8. A9. C 10. B三、汉译英1.coding techniques 编码技术2. application software 应用软件3. floating point data 浮点数据4.timesharing分时，分时技术5. storage capacities 存储容量1. system buses 系统总线2. virtual memory 虚拟存储器3. computer architecture 计算机体系结构4. instruction set 指令集5. direct memory access 直接存储器存取1.parallel processing 并行处理2. pipeline processing流水线处理3. vector processing 向量处理4. scalar processor标量处理器5. backward compatibility 向下兼容1. parallel algorithm并行算法2. exhaustive search穷举搜索3. dynamic programming 动态规划4. doubly-linked list 双向链表5. two-dimensional array 二维数组1. derived class派生类2. Inheritance 继承3. markup languages 标记语言4. Hyperlinks 超链接5. Java virtual machine Java虚拟机四、翻译句子1. By using various coding techniques, groups of bits can be made to represent not only binary numbers but also other discrete symbols.2. System software includes not only the complex programs used by technicians to create application software in the first place but also the organizational programs needed to start up the computer and govern its use of other programs.3. Data are numbers and other binary-code information that are operated on to achieve required computational results.4. Rather than arithmetically or logically manipulating characters, a computer may concatenate strings of characters, replace some characters with others, or otherwise manipulate character strings.5. Software applications like word processing, electronic spreadsheets, database management programs, painting and drawing programs, desktop publishing, and so forth became commercially available, giving more people reasons to use a computer.1. By asserting these internal and external control signals in the proper sequence, the control unit causes the CPU and the rest of the computer to perform the operation needed to correctly process instructions.2. In a computer with virtual memory, less-used parts of programs are shifted from RAM to a hard disk and are moved back only when needed.3. A technique used to compensate for the mismatch in operating speeds is to employ an extremely fast, small cache between the CPU and main memory whose access time is close to processor logic clock cycle time.4. The data transfer rate of peripherals is usually slower than the transfer rate of the CPU, and consequently, a synchronization mechanism may be needed.5. In some computers the interrupt vector is an address that points to a location in memory where the beginning address of the I/O service routine is stored.1. The purpose of parallel processing is to speed up the computer processing capability and increase its throughput, that is, the amount of processing that can be accomplished during a given interval of time.2. It is characteristic of pipelines that several computations can be in process in distinct segments at the same time.3. To achieve the required level of high performance it is necessary to utilize the fastest and most reliable hardware and apply innovative procedures from vector and parallel processing techniques.4. In general, the greater the number of instructions in an instruction set, the larger the propagation delay is within the CPU.5. Although CISC processors are more complex, this complexity does not necessarily increase development costs.1. In short, communication problems arise when the language used for an algorithm's representation is not precisely defined or when information is not given in adequate detail.2. Another common algorithmic structure involves that the need to continue executing a statement or sequence of statements as long as some condition remains true.3. In many algorithms, running time will vary not only for inputs of different sizes, but also for different inputs of the same size.4. Thus, dynamic programming is a bottom-up technique that usually begins by solving the smallest subproblems, saving these results, and then reusing them to solve larger and larger subproblems until the solution to the original problem is obtained.5. The conversion from this conceptual one-dimensional array organization to the actual arrangement within the machine’s memory is straight forward and the data can be stored in a seguence of 24 memory cells with consecutive address in the same order envisioned by the programma.1. Documentation is needed for everyone who will be involved with the program——users, operators, and programmers.2. Rather, programs written in a high-level language or assembly language are converted to machine language, which is then executed by the computer.3. The corresponding programs set forth precise procedures, or series of instructions, and the programmer has to follow a proper order of actions to solve a problem.4. 4GLs may not entirely replace third-generation languages because they are usually focused on specific tasks and hence offer fewer options.5. Inheritance is the means by which objects of a class can access member variables and functions contained in a previously defined class, without having to restate those defi nitions.。