Graphical system design solution

系统流程图的作用及符号表示英文回答：System Flowchart.A system flowchart is a graphical representation of a system's processes, data flows, and storage. It helps visualize and analyze the flow of information and materials through a system, making it easier to identify bottlenecks, inefficiencies, and potential improvements.Symbols Used in System Flowcharts.System flowcharts use a standardized set of symbols to represent different elements of a system:Process: A shape (e.g., rectangle, oval) indicating a specific action or function.Data Input/Output: A parallelogram representing dataentering or leaving the system.Data Storage: A cylinder or disk-shaped symbol indicating a data storage device.Decision Point: A diamond shape representing a point where decisions are made.Connector: A circle or diamond with a line connecting it to another part of the flowchart, indicating a logical connection.Terminator: A rectangle with rounded corners, representing the start or end of a process.Flow Arrows: Lines connecting symbols to indicate the direction of data flow.Purpose of System Flowcharts.System flowcharts serve several important purposes:Visualizing System Processes: They provide a comprehensive overview of a system, enabling stakeholders to understand its structure and functionality.Documenting System Requirements: Flowcharts can help define and document system requirements, ensuring that everyone has a clear understanding of what the system is supposed to accomplish.Identifying Process Bottlenecks: Flowcharts can highlight areas of inefficiency or congestion, helping to identify potential improvements.Planning System Enhancements: By visualizing the existing system, flowcharts can facilitate planning for enhancements and modifications.Communicating System Design: Flowcharts provide a common language for stakeholders to discuss and understand the system, regardless of their technical background.中文回答：系统流程图。

DATASHEETOverview Formality ® is an equivalence-checking (EC) solution that uses formal, static techniques to determine if two versions of a design are functionally equivalent.Formality delivers capabilities for ECO assistance and advanced debugging to help guide the user in implementing and verifying ECOs. These capabilities significantly shorten the ECO implementation cycle.The size and complexity of today’s designs, coupled with the challenges of meeting timing, area, power and schedule, requires that the newest, most advanced synthesis optimizations be fully verifiable.Formality supports all of the out-of- the-box Design Compiler ® and Fusion Compiler™ optimizations and so provides the highest quality of results that are fully verifiable.Formality supports verification of power-up and power-down states, multi-voltage, multi- supply and clock gated designs.Formality’s easy-to-use, flow-based graphical user interface and auto-setup mode helps even new users successfully complete verification in the shortest possible time.Figure 1: Formality equivalence checking solutionIndependent formalverification of DesignCompiler and FusionCompiler synthesisresults, with built-in intelligencedelivering the highestverifiable QoRFormality Equivalence Checking and Interactive ECOKey Benefits• Perfect companion to Design Compiler and Fusion Compiler—supports all default optimizations• Intuitive flow-based graphical user interface• Verifies low-power designs including power-up and power-down states• ECO implementation assistance, fast verification of the ECO, and advanced debugging• Auto setup mode reduces “false failures” caused by incorrect or missing setup information• Multicore verification boosts performance• Automated guidance boosts completion with Design Compiler and Fusion Compiler• Verifies full-custom and memory designs when including ESP technologyFormalityThe Most Comprehensive Equivalence Checking SolutionFormality delivers superior completion on designs compiled with Design Compiler or Fusion Compiler. Design Compiler is the industry leading family of RTL Synthesis solutions. Fusion Compiler is the next generation RTL-to-GDSII implementation system architected to address the complexities of advanced process node design. Designers no longer need to disable the powerful optimizations available with Design Compiler or Fusion Compiler to get equivalence checking to pass. Design Compiler/Fusion Compiler combined with Formality delivers maximum quality of results (QoR) that are fully verifiable.Easy to Use with Auto-setup modeFormality’s auto-setup mode simplifies verification by reducing false failures caused by incorrect or missing setup information. Auto-setup applies setup information in Formality to match the assumptions made by Design Compiler or Fusion Compiler, including naming styles, unused pins, test inputs and clock gating.Critical files such as RTL, netlists and libraries are automatically located. All auto-setup information is listed in a summary report.Guided SetupFormality can account for synthesis optimizations using a guided setup file automatically generated by Design Compiler or Fusion Compiler. Guided setup includes information about name changes, register optimizations, multiplier architectures and many other transformations that may occur during synthesis. This correct-by-construction information improves performance and first-pass completion by utilizing the most efficient algorithms during matching and verification.Formality-guided setup is a standard, documented format that removes unpredictability found in tools relying on log file parsing.Independent VerificationEvery aspect of a guided setup flow is either implicitly or explicitly verified, and all content is available for inspection in an ASCII file.Figure 2: Automatic cone pruning improves schematic readability when debuggingHier-IQ TechnologyPatented Hier-IQ technology provides the performance benefits of hierarchical verification with flat verification’s out-of- the-box usability.Error-ID TechnologyError-ID identifies the exact logic causing real functional differences between two design representations. Error-ID can isolate and report several logic differences when multiple discrepancies exist. Error-ID will also present alternative logic that can be changed to correct a given functional difference; this flexibility allows the designer to select the change that is easiest to implement.Failing Pattern Display WindowAll failing input patterns can be viewed in a familiar spreadsheet-like format. The failing pattern window is an ideal way to quickly identify trends indicating the cause of a failing verification or improper setup.Figure 3: Problem areas can be easy identified by visual inspection of the Failing Pattern WindowPower-aware VerificationFormality is fully compatible with Power Compiler™ and verifies power-up and power-down states, multi-voltage, multi-supply and clock gated designs.When a reference design block is powered up, Formality verifies functionality. If the implementation design powers up differently, failing points will occur.Formality functionally verifies that the implementation powers down when the reference powers down and will detectfunctional states where the implementation does not power down as expected. The valid power states are defined in the power state table (PST).Power intent is supplied to Formality through IEEE 1801 Unified Power Format (UPF).Figure 4: Power connectivity is easy to see and debug from the schematic viewAccelerated Time to ResultsFormality’s performance is enhanced with multicore verification. This Formality capability allows verification of the design using up to four cores simultaneously to reduce verification time.Other Time-Saving FeaturesFormality’s Hierarchical Scripting provides a method to investigate sub-blocks without additional setup and is ideal for isolating problems and verifying fixes.The Source Browser opens RTL and netlist source files to highlight occurrences of a selected instance. This can help users correlate between the RTL and gate-level design versions.Error Region Correlation provides a quick, visual identification of the logic from one design that correspond to the errors isolated by Error-ID within the other.Command Line Editing allows you to take advantage of history and common text editor commands when working from Formality’s command line.Interactive ECOKey BenefitsProvides GUI-driven ECO implementation assistance, fast ECO verification, and advanced debugging. Formality guides the user through the implementation of ECOs, and then quickly verifies only the changed logic.Formality Interactive ECO FlowFormality uses the ECO RTL and an unmodified netlist. Guided GUI driven changes are made to the netlist. Once the ECO has been implemented, a quick verification is run on only the affected logic cones, eliminating the need for a full verification run on the design to verify that the ECO was implemented correctly.Once all ECO’s are implemented and fully verified, a list of IC Compiler™ commands is generated to assist in implementing the physical changes to the design.ECO GuidanceFormality highlights equivalent nets between the reference and implementation designs, and nets that have lost their equivalence due to the ECO changes in the reference. This helps the designer quickly identify where the change should be made in the implementation.Implementing the ECOEditing commands in Formality are used to modify the netlist in-place using the GUI.Rapid ECO VerificationFormality can identify and verify just the portion of the design affected by the ECO. This ensures that the ECO was implemented correctly. If the ECO verification fails, the ECO can be interactively “undone” and new edits can be made again. Once the partial verification passes, the changes are committed. This partial verification eliminates having to verify the entire design to assure that the ECO was implemented correctly, dramatically reducing the total time required to implement and verify the ECO.Figure 5: Equivalent net is highlighted between Reference design (left) and Implementation design (right)Figure 6: On a completed ECO, the schematic shows the nets affected by ECO in yellow, and the new component and net in orangeFigure 7: Formality transcript shows a successful partial verification of the portion of the design that was affected by the ECOInterface with IC Compiler IIOnce the ECO’s are implemented and verified, a final complete verification run is performed to assure that the ECO RTL and the ECO netlist are functionally equivalent.Formality produces IC Compiler II compatible ECO command file, easing the implementation in the physical design.Advanced DebuggingFormality incorporates advanced debugging capabilities that help the designer identify and debug verifications that do not pass. The designer can find compare points, equivalences (and inverted-equivalences) between reference and implementation designs, perform “what if” analysis by interactively modifying the designs, and verify equivalence between two (or multiple) points.Transistor VerificationESP combines with Formality to offer fast verification of custom circuits, embedded memories and complex I/Os. ESP technology directly reads existing SPICE and behavioral RTL models and does not require restrictive mapping or translation.Input Formats• Synopsys DC, DDC, Milkyway™• IEEE 1800 SystemVerilog• Verilog-95, Verilog-2001• VHDL-87, VHDL-93• IEEE 1801 Unified Power Format (UPF)Guided Setup Formats• Synopsys V-SDC• Formality Guide Files (SVF)Platform Support• Linux Suse, Red Hat and Enterprise• SPARC SolarisFor more information about Synopsys products, support services or training, visit us on the web at: , contact your local sales representative or call 650.584.5000.©2019 Synopsys, Inc. All rights reserved. Synopsys is a trademark of Synopsys, Inc. in the United States and other countries. A list of Synopsys trademarks isavailable at /copyright.html . All other names mentioned herein are trademarks or registered trademarks of their respective owners.。

1. artificial intelligence 人工智能2. paper-tape reader 纸带阅读器3. optical computer 光计算机4. neural network 神经网络5. instruction set 指令集6. parallel processing 并行处理7. difference engine 差分机8. versatile logical element 通用逻辑元件9. silicon substrate 硅衬底10. vacuum tube 真空管11. 数据的存储与处理the storage and handling of data12. 超大规模集成电路very large-scale integrated circuit13. 中央处理器central processing unit14. 个人计算机personal computer15. 模拟计算机analogue computer16. 数字计算机digital computer17. 通用计算机general-purpose computer18. 处理器芯片processor chip19. 操作指令operating instructions20. 输入设备input device1. artificial neural network 人工神经网络2. computer architecture 计算机体系结构3. robust computer program 健壮的计算机程序4. human-computer interface 人机接口5. knowledge representation 知识表示6. 数值分析numerical analysis7. 程序设计环境programming environment8. 数据结构data structure9. 存储和检索信息store and retrieve information10. 虚拟现实virtual reality1. data field 数据字段，数据域2. learning curve 学习曲线3. third-party solution 第三方解决方案4. Windows Media Player Windows媒体播放器5. 开始按钮Start button6. 指定输入区designated input area7. 手写体识别系统handwriting-recognition system8. 字符集character set1. function key 功能键，操作键2. voice recognition module 语音识别模块3. touch-sensitive region 触敏区4. address bus 地址总线5. flatbed scanner 平板扫描仪6. dot-matrix printer 点阵打印机（针式打印机）7. parallel connection 并行连接8. cathode ray tube 阴极射线管9. video game 电子游戏10. audio signal 音频信号11. 操作系统operating system12. 液晶显示（器）LCD (liquid crystal display)13. 喷墨打印机inkjet printer14. 数据总线data bus15. 串行连接serial connection16. 易失性存储器volatile memory17. 激光打印机laser printer18. 磁盘驱动器disk drive19. 基本输入/输出系统BIOS (Basic Input/Output System)20. 视频显示器video display1. interrupt handler 中断处理程序2. virtual memory 虚拟存储（器），虚存，虚拟内存3. context switch 上下文转换，语境转换4. main memory 主存（储器）5. bit pattern 位模式6. 外围设备peripheral device7. 进程表process table8. 时间片time slice9. 图形用户界面graphical user interface10. 海量存储器mass storage1. code generator 代码生成程序，代码发生器2. abstract machine 抽象机3. program editor 程序编辑程序，程序编辑器4. configuration item 配置项5. 计算机辅助设计CAD (computer-aided design)6. 数据冗余data redundancy7. 指挥与控制系统command and control system8. 视频压缩与解压缩video compression and decompression1. storage register 存储寄存器2. function statement 函数语句3. program statement 程序语句4. object-oriented language 面向对象语言5. assembly language 汇编语言6. intermediate language 中间语言，中级语言7. relational language 关系（型）语言8. artificial language 人工语言9. data declaration 数据声明10. SQL 结构化查询语言11. 可执行程序executable program12. 程序模块program module13. 条件语句conditional statement14. 赋值语句assignment statement15. 逻辑语言logic language16. 机器语言machine language17. 函数式语言functional language18. 程序设计语言programming language19. 运行计算机程序run a computer program20. 计算机程序员computer programmer1. native code 本机（代）码2. header file 头标文件；页眉文件3. multithreaded program 多线程程序4. Java-enabled browser 支持Java的浏览器5. malicious code 恶意代码6. 机器码machine code7. 汇编码assembly code8. 特洛伊木马程序Trojan horse9. 软件包software package10. 类层次class hierarchy1. bar chart 条形图2. frequency array 频率数组3. graphical representation 图形表示4. multidimensional array 多维数组5. 用户视图user(’s) view6. 下标形式subscript form7. 一维数组one-dimensional array8. 编程结构programming construct1. inference engine 推理机2. system call 系统调用3. compiled language 编译执行的语言4. parallel computing 并行计算5. pattern matching 模式匹配6. memory location 存储单元7. interpreter program 解释程序8. library routine 库程序，程序库例行程序9. intermediate program 中间程序，过渡程序10. source file 源文件11. 解释执行的语言interpreted language12. 设备驱动程序device driver13. 源程序source program14. 调试程序debugging program15. 目标代码object code16. 应用程序application program17. 实用程序utility program18. 逻辑程序logic program19. 墨盒ink cartridge20. 程序的存储与执行program storage and execution1. messaging model 消息接发模型2. common language runtime 通用语言运行时刻（环境）3. hierarchical namespace 分层名称空间4. development community 开发界5. CORBA公用对象请求代理（程序）体系结构6. 基本组件base component7. 元数据标记metadata tag8. 虚拟机virtual machine9. 集成开发环境IDE（integrated development environment）10. 简单对象访问协议SOAP（Simple Object Access Protocol）1. procedure call 过程调用2. fault tolerance 容错3. homogeneous system 同构系统4. autonomous agent 自主主体5. 路由算法routing algorithm6. 异构型环境heterogeneous environment7. 多址通信协议multicast protocol8. 通信链路communication(s) link1. system specification 系统规格说明2. unit testing 单位（或单元、部件）测试3. software life cycle 软件生命周期（或生存周期）4. system validation testing 系统验证测试5. evolutionary development process 演化开发过程6. simple linear model 简单线性模型7. program unit 程序单元8. throwaway prototype 抛弃式原型9. text formatting 正文格式编排，文本格式化10. system evolution 系统演变11. 系统设计范例system design paradigm12. 需求分析与定义requirements analysis and definition13. 探索式编程方法exploratory programming approach14. 系统文件编制system documentation15. 瀑布模型waterfall model16. 系统集成system integration17. 商用现成软件commercial off-the-shelf (或COTS) software18. 基于组件的软件工程component-based software engineering (CBSE)19. 软件维护工具software maintenance tool20. 软件复用software reuse1. check box 复选框，选择框，校验框2. structured design 结构化设计3. building block 积木块，构建模块，构件4. database schema 数据库模式5. radio button 单选（按）钮6. 系统建模技术system modeling technique7. 模型驱动开发model-driven development8. 数据流程图data flow diagram9. 下拉式菜单drop-down (或pull-down) menu10. 滚动条scroll bar1. procedural language 过程语言2. common design structure 通用设计结构3. class and object interaction 类与对象交互4. design constraint 设计约束5. 设计模式design pattern6. 可复用软件reusable software7. 面向对象的系统object-oriented system8. 继承层次inheritance hierarchy1. end user 最终用户，终端用户2. atomic operation 原子操作3. database administrator 数据库管理员4. relational database model 关系数据库模型5. local data 本地数据6. object-oriented database 面向对象数据库7. database management system (DBMS) 数据库管理系统8. entity-relationship model (ERM) 实体关系模型9. distributed database 分布式数据库10. flat file 平面文件11. 二维表two-dimensional table12. 数据属性data attribute13. 数据库对象database object14. 存储设备storage device15. 数据类型data type16. 数据插入与删除data insertion and deletion17. 层次数据库模型hierarchical database model18. 数据库体系结构database architecture19. 关系数据库管理系统relational database management system (RDBMS)20. 全局控制总线global control bus1. nonvolatile storage system 非易失性存储系统2. equipment malfunction 设备故障3. wound-wait protocol 受伤―等待协议4. exclusive lock 排它锁，互斥（型）锁5. database integrity 数据库完整性6. 共享锁shared lock7. 数据库实现database implementation8. 级联回滚cascading rollback9. 数据项data item10. 分时操作系统time-sharing operating system1. base class 基（本）类2. data library 数据（文件）库3. data access stack 数据存取栈4. database-specific functionality 数据库特有的功能5. 默认设置default setting6. 异常处理程序exception handler7. β测试beta testing8. 桥接提供程序bridge provider1. microwave radio 微波无线电2. digital television 数字电视3. DSL 数字用户线路4. analog transmission 模拟传输5. on-screen pointer 屏幕上的指针6. computer terminal 计算机终端7. radio telephone 无线电话8. cellular telephone 蜂窝电话，移动电话，手机9. decentralized network 分散型网络10. wire-based internal network 基于导线的内部网络，有线内部网11. 光缆fiber-optic cable12. 传真机fax machine13. 无线通信wireless communications14. 点对点通信point-to-point communications15. 调制电脉冲modulated electrical impulse16. 通信卫星communication(s) satellite17. 电报电键telegraph key18. 传输媒体transmission medium (或media)19. 无绳电话cordless telephone20. 金属导体metal conductor1. bit map 位图，位映象2. parallel port 并行端口3. direct memory access (DMA) 直接存储器存取4. universal serial bus 通用串行总线5. general-purpose register 通用寄存器6. 电路板circuit board7. 串行通信serial communication8. 数码照相机digital camera9. 存储映射输入/输出memory-mapped I/O10. 有线电视cable televisionUnit Seven/Section CI. Fill in the blanks with the information given in the text:1. Transfer2. cells3. label4. integratedII. Translate the following terms or phrases from English into Chinese and vice versa:1. high-definition TV 高清晰度电视2. frame relay 帧中继3. data rate 数据（速）率4. metropolitan area network 城域网5. 机顶盒set-top box6. 多模光纤multi-mode fiber7. 协议堆栈protocol stack8. 虚拟路径标识符VPI (virtual path identifier)1. file server 文件服务器2. carrier sense 载波检测，载波监听3. protocol suite 协议组，协议集4. peer-to-peer model 对等模型5. bus topology network 总线拓扑网络6. inter-machine cooperation 机器间合作，计算机间合作7. Ethernet protocol collection 以太网协议集8. proprietary network 专有网络9. utility package 实用软件包，公用程序包10. star network 星形网络11. 局域网local area network (LAN)12. 令牌环token ring13. 无线网络wireless network14. 封闭式网络closed network15. 环形拓扑结构ring topology16. 客户机/服务器模型client/server model17. 网络应用程序network application18. 进程间通信interprocess communication19. 打印服务器print server20. 广域网wide area network (W AN)1. routing path 路由选择通路2. dual-ring topology 双环形拓扑结构3. extended star topology 扩展星形拓扑结构4. backbone network 基干网，骨干网5. mesh topology 网格拓扑结构6. 同轴电缆coaxial cable7. 逻辑拓扑结构logical topology8. 无冲突连网环境collision-free networking environment9. 树形拓扑结构tree topology10. 目的地节点destination node1. destination address 目的地址2. performance degradation 性能退化（或降级）3. four-interface bridge 4接口网桥4. common bus 公共总线，公用总线5. 数据链路层data-link layer6. 协议转换器protocol converter7. 开放式系统互连OSI (Open Systems Interconnection)8. 物理地址physical address1. cell phone 蜂窝电话，移动电话，手机2. IP address 网际协议地址，IP地址3. autonomous system 自主系统4. dial-up connection 拨号连接5. network identifier 网络标识符6. binary notation 二进制记数法7. mnemonic name 助记名，缩写名8. Internet-wide directory system 因特网范围的目录系统9. name server 名称服务器10. Internet infrastructure 因特网基础结构11. 助记地址mnemonic address12. 网吧cyber cafe13. 宽带因特网访问broadband Internet access14. 顶级域名top-level domain (TLD)15. 因特网编址Internet addressing16. 点分十进制记数法dotted decimal notation17. 因特网服务提供商Internet service provider (ISP)18. 专用因特网连接dedicated Internet connection19. 主机地址host address20. 硬件与软件支持hardware and software support1. incoming message 来报，到来的报文2. application layer 应用层3. utility software 实用软件4. sequence number （顺）序号，序列号5. remote login capabilities 远程登录能力6. 端口号port number7. 软件例程software routine8. 传输层transport layer9. 文件传送协议FTP（File Transfer Protocol）10. 万维网浏览器Web browser1. wildcard character 通配符2. Copy command 复制命令3. search operator 搜索算符4. home page 主页5. 回车键Enter key6. 搜索引擎search engine7. 嵌入代码embedded code8. 超文本标记语言Hypertext Markup Language1. mailing list 邮件发送清单，邮件列表2. proprietary software 专有软件3. cc line 抄送行4. bcc line 密送行5. forwarded e-mail messages 转发的电子邮件6. e-mail convention 电子邮件常规7. click on an icon 点击图标8. confidential document 密件，秘密文件9. classified information 密级信息10. recovered e-mail message 恢复的电子邮件11. 常用情感符commonly used emoticon12. 已删除电子邮件deleted e-mail13. 电子系统electronic system14. 附件行Attachments line15. 版权法copyright law16. 电子邮件网规e-mail netiquette17. 信息高速公路information superhighway18. 签名文件signature file19. 电子数据表程序spreadsheet program20. 文字处理软件word processor1. web-authoring software 网络写作软件2. template generator 模版生成程序3. navigation page 导航页面4. corporate logo 公司标识5. splash page 醒目页面，过渡页6. 导航条navigation bar7. 节点页面node page8. 网站地图site map9. 可用性测试usability testing10. 图形交换格式gif（Graphics Interchange Format）Unit Ten/Section CI. Fill in the blanks with the information given in the text:1. technical2. participation3. openness; sharing4. prosumers; wikiII. Translate the following terms or phrases from English into Chinese and vice versa:1. instant messaging 即时通信，即时消息2. content syndication 内容聚合3. user-friendly interface 用户友好界面，方便用户的接口4. Weblog-publishing tool 博客（或网志）发布工具5. 应用程序编程接口application programming interface (API)6. 基于因特网的外包Internet-based outsourcing7. 软件升级software upgrade8. 版本号version number1. customized marketing strategy 定制的营销策略2. B2G transaction 企业对政府交易3. mobile telephone 移动电话4. dot-com bust 网络不景气5. smart card 智能卡，灵巧卡6. digital piracy 数字盗版7. dot-com boom 网络繁荣8. C2C transaction 消费者对消费者交易9. Web auction site 拍卖网站10. fingerprint reader 指纹读取器11. 射频识别装置radio-frequency identification (RFID) device12. 电子数据交换electronic data interchange (EDI)13. 库存管理技术inventory management technology14. 知识产权intellectual property15. 条形码bar code16. 货币兑换currency conversion17. 电子图书electronic book18. 视网膜扫描仪retina scanner19. 个人数字助理personal digital assistant (PDA)20. 企业对企业电子商务B2B electronic commerce1. software suite 软件套件2. text box 文本框3. virtual checkout counter 虚拟付款台4. static catalog 静态目录5. browser session 浏览器会话期6. 动态目录dynamic catalog7. 购物车软件shopping cart software8. 供应链supply chain9. 企业资源计划软件enterprise resource planning (ERP) software10. 税率tax rateUnit Eleven/Section CI. Fill in the blanks with the information given in the text:1. credit2. downloading; in-store3. malls4. hackersII. Translate the following terms or phrases from English into Chinese and vice versa:1. privacy policy 隐私政策2. identity theft 身份（信息）盗取3. affiliate marketing 联属网络营销4. postal money order 邮政汇票5. 零售网站retail website6. 信用卡credit card7. 货到付款cash on delivery8. 安全套接层Secure Sockets Layer1. encryption program 加密程序2. deletion command 删除命令3. authorized user 授权的用户4. backup copy 备份5. voltage surge 电压浪涌6. circuit breaker 断路器7. electronic component 电子元件（或部件）8. data-entry error 数据输入错误9. electronic break-in 电子入侵10. power line 电力线，输电线11. 检测程序detection program12. 电源power source13. 破坏性计算机程序destructive computer program14. 计算机病毒computer virus15. 软件侵权software piracy16. 硬盘驱动器hard-disk drive17. 病毒检查程序virus checker18. 主存储器primary storage19. 电子公告板electronic bulletin board20. 浪涌电压保护器surge protector1. phishing attack 网络钓鱼攻击2. graphics card 显（示）卡3. heuristic analysis 试探性分析4. infected file 被感染文件5. virus dictionary 病毒字典6. 数据捕获data capture7. 恶意软件malic ious software8. 病毒特征代码virus signature9. 防病毒软件antivirus software10. 内存驻留程序memory-resident program1. system platform 系统平台2. install back doors 安装后门3. email attachment 电子邮件的附件4. vulnerability assessment tool 脆弱性评估工具5. 网络安全措施network security measure6. 系统维护人员system maintenance personnel7. 邮件交换记录MX record8. 非法闯入系统hack a system。