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计算机科学引论答案.doc

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1、Computing Essentials 2008 练习答案Chapter 1: Information Technology, The Internet, and YouCrossword Puzzle Answers:AcrossNum. ClueAnswer1 The most essential part of an information system. People 7 Coordinates computer resources. Operating System 10 Modifies signals for processing. Modem12 Data that has

2、been processed by the computer. Information13 Unprocessed facts. Data14 Notebook computer that accepts handwritten input Tablet PCDownNum. ClueAnswer2 Uses computers to become more productive.End User3 Rules or guidelines to follow when using software, hardware, and data.Procedures 4 Created by word

3、 processors.Document Files 5 Specialized programs that allow input and output devices to communicate.Device Drivers6 Created by database management programs.Database Files 8 The physical equipment of a microcomputer.Hardware 9 The worlds largest computer network.Internet13 Provides step-by-step inst

4、ructions to the computer.SoftwareMultiple Choice AnswersB B A B D D A C D DMatching AnswersE F I H A C G B D JChapter 2: The Internet, The Web, and Electronic CommerceCrossword Puzzle Answers:AcrossNum. ClueAnswer2 Provide users a connection to the Internet. ISP3 Unwelcome e-mail.Spam5 Explore the W

5、eb. Surf7 Internet uploading and downloading service. FTP8 Steals credit card information. Carder9 A file, such as a document or worksheet, that is attached to an e-mail message.Attachment10 Involves the sale of a product to another business.B2B13 Connection to Web resources. Link15 Process of trans

6、ferring information from a remote computer to the computer one is using.DownloadDownNum. ClueAnswer1 The sites that a search engine returns after running a keyword search. Hits4 Special program written in Java. Applet5 Locates information online. Search Engine6 Location of Web resource. URL11 Progra

7、m that provides access to Web Browser12 Used to block certain sites. Filter14 Provides high-speed connection using existing telephone lines. DSLNum Multiple Choice AnswersD A C C A A A A D BMatching Answersi d g e f c h j a bChapter 3: Basic Application SoftwareCrossword Puzzle Answers:AcrossNum. Cl

8、ueAnswer4 Rectangular area that contains messages. Window5 System to organize and retrieve data. DBMS8 Collection of individual applications. Software Suite10 Rearrange records using a field. Sort11 Formed by intersection of row and column. Cell14 Collection of related data. Database16 Flyer, report

9、, newsletter, Web page. Document17 These make up a presentation. Slides18 Question or request for data in a database. QueryDownNum. ClueAnswer1 List of commands. Menu2 Rectangular grid of rows and columns used in programs like Excel. Worksheet3 Has records and fields. Table6 Controls format and plac

10、ement of slides. Master Slide7 Requests user input. Dialog Box9 Moves insertion point to next line. Word Wrap12 Series of cells.Range13 A vertical block of cells one cell wide. Column15 Contain buttons and menus. ToolbarsNum Multiple Choice AnswersD D B D D A B B C DMatching Answersj a c h b d i e g

11、 fChapter 5: System SoftwareCrossword Puzzle Answers:AcrossNum. ClueAnswer5 Program that makes copies of files in case of damage or loss. Backup6 Boot that occurs when the computer is already on. Warm boot8 Combination of several utility programs in one package. Utility Suite9 Allows communication b

12、etween devices and the operating system. Driver11 Concentric rings on a disk. Tracks12 Used to control and coordinate networked computers. NOSDownNum. ClueAnswer1 Location to store related files.Folder2 Computer that coordinates all communication between other computers.Network server3 Uses graphica

13、l elements to communicate with the operating system. GUI4 Broken-up file stored in different sectors. Fragmented5 Starting or restarting a computer. Booting7 Operating system with over 80 percent of the market. Windows10 Graphic objects on the desktop used to represent programs and other files. Icon

14、sNum Multiple Choice AnswersC D C A A A C B B A CMatching Answersj d f b g h a e i cChapter 7: Input and OutputCrossword Puzzle Answers:AcrossNum. ClueAnswer6 Used to grade multiple choice exams. OMR9 Specialized digital camera that broadcasts images over the Internet. WebCam10 Records images digita

15、lly on a disk. Digital camera13 Most popular input device used for computer games. Joystick14 Delivers much clearer picture than regular TV. HDTV16 Resolution is expressed as a matrix of these dots. Pixel 17 Keyboard that rolls up for storage and transport. FlexibleDownNum. ClueAnswer1 The distance

16、between each pixel. Dot pitch2 Most commonly used way to input data. Keyboard3 Button rotated to scroll through information displayed on the monitor. Wheel Button4 Most widely used type of mouse. Mechanical 5 Type of terminal that does no processing. Dumb7 Number of times a screen is redrawn each se

17、cond. Refresh rate8 Measure of resolution. dpi11 Keys that turn features on and off. Toggle12 Translates processed information into hard copy. Printer 15 Bar code system used in supermarkets. UPCNum Multiple Choice AnswersA B A B D A D C D BMatching Answersi e f j a b g d c hChapter 9: Communication

18、s and NetworksCrossword Puzzle Answers:AcrossNum. ClueAnswer5 Interprets and routs incoming radio frequencies. Base station7 Continuous electronic waves. Analog 9 Configuration of a network. topology10 Network interface card. NIC11 Transfer speed or transfer rate. bps12 Short range wireless communic

19、ation standard. bluetooth14 Measurement of the width of the communication channel. bandwidthDownNum. ClueAnswer1 Node that requests and uses resources available from other nodes. client2 Each device in the network handles its own communications. Bus network3 Device that allows links between LANs. Ne

20、twork gateway4 Process that converts digital to analog. modulation6 Pieces of a message sent over the Internet. packets8 Global positioning system. GPS13 Any device that is connected to a network. node15 Uses existing telephone lines to provide high-speed connections.DSL16 Central node for other nod

21、es. hubNum Multiple Choice AnswersC B A D C D B B D DMatching Answersg b a i h e c j d fChapter 11: Information SystemsCrossword Puzzle Answers:AcrossNum. ClueAnswer3 Level of management concerned with strategic planning. Top 5 Identifies, investigates, and develops new products and services. Resear

22、ch9 Report produced upon request. Demand10 Someone who makes decisions in a DSS. User11 Model that helps middle-level managers in long-range planning. Tactical12 Information worker involved in the creation of information.Knowledge worker14 Concerned with calculating employee paychecks. Payroll16 Spe

23、cialized information system that knowledge workers use. KWS17 Keeps track of summaries of all foregoing transactions. General ledgerDownNum. ClueAnswer1 The buying of materials and services. Purchasing2 Plans, prices, promotes, sells, and distributes goods and services.Marketing4 Form that shows sup

24、ply and order information. Purchase order6 Report that calls attention to unusual events. Exception7 Help top-level managers oversee operations and develop plans. ESS8 Information worker that distributes information. Data worker13 Use data from TPS to support middle managers. MIS15 Level of manageme

25、nt concerned with decision making. Middle Num Multiple Choice AnswersB B A D D A C C CC BMatching Answersh j f d g b a c i eChapter 13: Systems Analysis and DesignCrossword Puzzle Answers:AcrossNum. ClueAnswer3 Systems implementation Conversion8 Collection of activities and elements organized to acc

26、omplish a goal. System9 Build a model that can be modified before the system is installed. Prototyping10 Automated design tool. CASE12 Approach where new system is tried in only one part of an organization. Pilot14 Shows levels of management and formal lines of authority. Organization chart15 List o

27、f questions. Checklist DownNum. ClueAnswer1 1st step in the design phase. Feasibility2 Study an organizations systems. Systems analysis4 Systems performance is compared to the original specifications.System audit5 Approach where new system is implemented slowly over time. Phased6 Conversion done by

28、abandoning old system and starting the new. Direct approach7 Diagram that shows the information flow within an organization. Data flow11 Shows the relationship between input and output documents. Grid chart12 Old and new systems are operated side by side. Parallel13 The most commonly overlooked acti

29、vity in the implementation phase. Training Num Multiple Choice AnswersA D A C D D A D A CMatching Answersg h f d c a b i j eChapter 15: Your Future and Information TechnologyCrossword Puzzle Answers:AcrossNum. ClueAnswer4 Inputs customer information and other data. Data entry worker6 Repairs and ins

30、talls computer components and systems. Computer Technician8 Acting in anticipation of future problems, needs, or changes. Proactive9 Develops and maintains Web sites. Webmaster10 Plans and designs information systems. System analyst11 Prepares instruction manuals and technical reports. Technical wri

31、ter12 Designs, tests, and researches encryption procedures. Cryptographer DownNum. ClueAnswer1 Person that is unfamiliar with computers. Na?ve2 Creates, tests, and troubleshoots computer programs. Programmer3 Person that feels learning about computers is an imposition.Frustrated 4 Creates and formats publication-ready material. Desktop publisher5 Instructs users on the latest software and hardware. Computer trainer7 Person that feels the idea of using a microcomputer is overrated. CynicNum Multiple Choice AnswersD B A D C D C A D BMatching Answersd j h a e i b g c f

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