计算机科学引论课后（2008影印版）全英语答案.doc

计算机科学引论课后（2008影印版）全英语答案Computing Essentials 2008缁冧範绛旀锛堢畝绛旈閮垎绛旀鍦悗闈級Chapter 1: Information Technology, The Internet, and YouCrossword Puzzle Answers:AcrossNum.ClueAnswer1The most essential part of an information system.People 7Coordinates computer resources.Operating System 10Modifies signals for processing.Modem12Data that has been processed by the computer.Information13Unprocessed facts.Data14Notebook computer that accepts handwritten input.Tablet PCDownNum.ClueAnswer2Uses computers to become more productive.End User3Rules or guidelines to follow when using software, hardware, and data.Procedures 4Created by word processors.Document Files 5Specialized programs that allow input and output devices to communicate.Device Drivers6Created by database management programs.Database Files 8The physical equipment of a microcomputer.Hardware 9The world鈥檚 largest computer network.Internet13Provides step-by-step instructions 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.ClueAnswer2Provide users a connection to the Internet.ISP3Unwelcome e-mail.Spam5Explore the Web.Surf7Internet uploading and downloading service.FTP8Steals credit card information.Carder9A file, such as a document or worksheet, that is attached to an e-mail message.Attachment10Involves the sale of a product to another business.B2B13Connection to Web resources.Link15Process of transferring information from a remote computer to the computer one is using.DownloadDownNum.ClueAnswer1The sites that a search engine returns after running a keyword search.Hits4Special program written in Java.Applet5Locates information online.Search Engine6Location of Web resource.URL11Program that provides access to WebBrowser12Used to block certain sites.Filter14Provides high-speed connection using existing telephone lines.DSLNumMultiple 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.ClueAnswer4Rectangular area that contains messages.Window5System to organize and retrieve data.DBMS8Collection of individual applications.Software Suite10Rearrange records using a field.Sort11Formed by intersection of row and column.Cell14Collection of related data.Database16Flyer, report, newsletter, Web page.Document17These make up a presentation.Slides18Question or request for data in a database.QueryDownNum.ClueAnswer1List of commands.Menu2Rectangular grid of rows and columns used in programs like Excel.Worksheet3Has records and fields.Table6Controls format and placement of slides.Master Slide7Requests user input.Dialog Box9Moves insertion point to next line.Word Wrap12Series of cells.Range13A vertical block of cells one cell wide.Column15Contain buttons and menus.ToolbarsNumMultiple Choice AnswersD D B D D A B B C DMatching Answersj a c h b d i e g fChapter 4: Specialized Application SoftwareCrossword Puzzle Answers:AcrossNum.ClueAnswer2Used to create real-time 3-D animation.VRML4Design tool used to plan multimedia presentations.Story Board6Editing software used to create MP3s.ACID8A type of personal Web site where articles are regularly posted.BLog9Creating a site.Web authoring10Representation of overall site design.Graphical map13Image recorded as a collection of objects.Vector image15Widely used type of Web animation.FlashDownNum.ClueAnswer1Composed of thousands of pixels.Bitmap image3Special effect that blends images together.Morphing5User participation.Interactivity7Allows responses like 鈥淥K鈥?and 鈥淕reat!鈥?Fuzzy Logic11Dots that make up an image.Pixels12Connection between pages in a multimedia presentation.Link14Attempt to develop computers that mimic human senses.AINumMultiple Choice AnswersMatching Answers1AI2AG3AD4BE5AC6BF7CH8BB9AJ10BAChapter 5: System SoftwareCrossword Puzzle Answers:AcrossNum.ClueAnswer5Program that makes copies of files in case of damage or loss.Backup6Boot that occurs when the computer is already on.Warm boot8Combination of several utility programs in one package.Utility Suite9Allows communication between devices and the operating system.Driver11Concentric rings on a disk.Tracks12Used to control and coordinate networked computers.NOSDownNum.ClueAnswer1Location to store related files.Folder2Computer that coordinates all communication between other computers.Network server3Uses graphical elements to communicate with the operating system.GUI4Broken-up file stored in different sectors.Fragmented5Starting or restarting a computer.Booting7Operating system with over 80 percent of the market.Windows10Graphic objects on the desktop used to represent programs and other files.IconsNumMultiple Choice AnswersC D C A A A C B B A CMatching Answersj d f b g h a e i cChapter 6: The System UnitCrossword Puzzle Answers:AcrossNum.ClueAnswer6Assists with the installation of expansion cards.Plug and Play8Memory which improves processing by acting as a temporary high-speed holding area between memory and the CPU.Cache10Controls the speed of operations.System ClockDownNum.ClueAnswer1Part of a microcomputer that contains the CPU.System Unit2Controls and manipulates data to produce information.Microprocessor3The number of bits that can be accessed by the microprocessor at one time.Word4Holding area for data, instructions, and information.Memory5Used to connect external devices to system unit via ports.Cable7Unit consisting of eight bits.Byte9Most widely used microprocessor binary coding scheme.ASCIINumMultiple Choice AnswersMatching Answers1DJ2BA3CC4BH5BG6AI7AD8CE9BF10CBChapter 7: Input and OutputCrossword Puzzle Answers:AcrossNum.ClueAnswer6Used to grade multiple choice exams.OMR9Specialized digital camera that broadcasts images over the Internet.WebCam10Records images digitally on a disk.Digital camera13Most popular input device used for computer games.Joystick14Delivers much clearer picture than regular TV.HDTV16Resolution is expressed as a matrix of these dots.Pixel 17Keyboard that rolls up for storage and transport.FlexibleDownNum.ClueAnswer1The distance between each pixel.Dot pitch2Most commonly used way to input data.Keyboard3Button rotated to scroll through information displayed on the monitor.Wheel Button4Most widely used type of mouse.Mechanical 5Type of terminal that does no processing.Dumb7Number of times a screen is redrawn each second.Refresh rate8Measure of resolution.dpi11Keys that turn features on and off.Toggle12Translates processed information into hard copy.Printer 15Bar code system used in supermarkets.UPCNumMultiple Choice AnswersA B A B D A D C D BMatching Answersi e f j a b g d c hChapter 8: Secondary StorageCrossword Puzzle Answers:AcrossNum.ClueAnswer5Improves hard-disk performance by anticipating data needs. Disk caching6Web-based storage.Internet drive7Invisible wedge-shaped division of a track.Sector8Portable and removable storage device.Floppy10Runs through each track of a stack of platters.Cylinder 11How tightly the bits can be packed next to each other.DensityDownNum.ClueAnswer1Ring of concentric circles without visible grooves.Track 2Grouped disk drives treated as one hard disk by the computer system.RAID3Measures the amount of time required to retrieve data.Access time4Represent 1s and 0s.Pits and lands9Disk with 500 times the storage as a standard floppy.Zip NumMultiple Choice AnswersMatching Answers1AG2AA3CJ4AI5CD6AB7CH8DC9DF10CEChapter 9: Communications and NetworksCrossword Puzzle Answers:AcrossNum.ClueAnswer5Interprets and routs incoming radio frequencies.Base station7Continuous electronic waves.Analog 9Configuration of a network.topology10Network interface card.NIC11Transfer speed or transfer rate.bps12Short range wireless communication standard.bluetooth14Measurement of the width of the communication channel.bandwidthDownNum.ClueAnswer1Node that requests and uses resources available from other nodes.client2Each device in the network handles its own communications.Bus network3Device that allows links between LANs.Network gateway4Process that converts digital to analog.modulation6Pieces of a message sent over the Internet.packets8Global positioning system.GPS13Any device that is connected to a network.node15Uses existing telephone lines to provide high-speed connections.DSL16Central node for other nodes.hubNumMultiple Choice AnswersC B A D C D B B D DMatching Answersg b a i h e c j d fChapter 10: Privacy and SecurityCrossword Puzzle Answers:AcrossNum.ClueAnswer3Malicious softwareMalware 6Program that records keystrokes and activitiesKeystroke logger7Used to record virtually everything done on a computerSnoopware8Those who gain access to systems for the fun and challengeHacker9Includes the locations of sites visited by your browserHistory fileDownNum.ClueAnswer1Programs that record information on Web site visitors.Cookie2Device that separates the computer from the power source.Surge protector4Study of human factors related to the things people use.Ergonomics 5Those who gain access to systems for malicious purposesCrackerNumMultiple Choice AnswersMatching Answers1AG2AH3DF4BA5BB6CC7DJ8CD9BI10DEChapter 11: Information SystemsCrossword Puzzle Answers:AcrossNum.ClueAnswer3Level of management concerned with strategic planning.Top 5Identifies, investigates, and develops new products and services.Research9Report produced upon request.Demand10Someone who makes decisions in a DSS.User11Model that helps middle-level managers in long-range planning.Tactical12Information worker involved in the creation of information.Knowledge worker14Concerned with calculating employee paychecks.Payroll16Specialized information system that knowledge workers use.KWS17Keeps track of summaries of all foregoing transactions.General ledgerDownNum.ClueAnswer1 The buying of materials and services.Purchasing2Plans, prices, promotes, sells, and distributes goods and services.Marketing4Form that shows supply and order information.Purchase order6Report that calls attention to unusual events.Exception7Help top-level managers oversee operations and develop plans.ESS8Information worker that distributes information.Data worker13Use data from TPS to support middle managers.MIS15Level of management concerned with decision making.Middle NumMultiple Choice AnswersB B A D D A C C CC BMatching Answersh j f d g b a c i eChapter 12: DatabasesCrossword Puzzle Answers:AcrossNum.ClueAnswer1Used to control access to internal networks.Firewall3Items that contain both data and instructions to manipulate the data.Objects6Proprietary database.Data bank7Type of processing where data collected over time is processed at one time.Batch8Facts or observations about people, places, things, and events.Data13Data captured or saved using a microphone.Audio16Multiple files on the same subject or person.Data redundancy17Points connected like the branches of a tree.NodesDownNum.ClueAnswer2Type of database available over the Web.Web4Similar objects grouped together.Classes5A collection of related fields.Record6Problems that occur when one or more files are overlooked.Data integrity9Uniquely identifies each record.Primary field10Technique used to search databases for information and patterns.Data mining11Focuses on the meaning and content of the data.Logical view12Distinctive field in each record of a database.Key Field14Descriptions of how data is to be manipulated.Methods15Person, place, thing, or object.EntityNumMultiple Choice AnswersMatching Answers1DE2BC3BD4CI5AB6CA7DH8AG9AJ10AFChapter 13: Systems Analysis and DesignCrossword Puzzle Answers:AcrossNum.ClueAnswer3Systems