A Activity diagram used in UML 6/9 and SysML B Bachman diagram Booch used in software engineering Block diagram Block Definition Diagram BDD used in SysML C Carroll diagram Cartogram Catalytic cycle Chemical equation Curly arrow diagram Category theory diagrams Cause-and-effect diagram Chord diagram Circuit diagram Class diagram from UML 1/9 Collaboration diagram from UML 2.0 Communication diagram from UML 2.0 Commutative diagram Comparison diagram Component diagram from UML 3/9 Composite structure diagram from UML 2.0 Concept map Constellation diagram Context diagram Control flow diagram Contour diagram Cordier diagram Cross functional flowchart D Data model diagram Data flow diagram Data structure diagram Dendrogram Dependency diagram Deployment diagram from UML 9/9 Dot and cross diagram Double bubble map used in education Drakon-chart E Entity-Relationship diagram ERD Event-driven process chain Euler diagram Eye diagram a diagram of a received telecommunications signal Express-G Extended Functional Flow Block Diagram EFFBD F Family tree Feynman diagram Flow chart Flow process chart Flow diagram Fusion diagram Free body diagram G Gantt chart shows the timing of tasks or activities used in project management Grotrian diagram Goodman diagram shows the fatigue data example: for a wind turbine blades H Hasse diagram HIPO diagram I Internal Block Diagram IBD used in SysML IDEF0 IDEF1 entity relations Interaction overview diagram from UML Ishikawa diagram J Jackson diagram K Karnaugh map Kinematic diagram L Ladder diagram Line of balance Link grammar diagram M Martin ERD Message Sequence Chart Mind map used for learning, brainstorming, memory, visual thinking and problem solving Minkowski spacetime diagram Molecular orbital diagram N N2 Nassi Shneiderman diagram or structogram a representation for structured programming Nomogram Network diagram O Object diagram from UML 2/9 Organigram Onion diagram also known as "stacked Venn diagram" P Package diagram from UML 4/9 and SysML Parametric diagram from SysML PERT Petri net shows the structure of a distributed system as a directed bipartite graph with annotations Phylogenetic tree - represents a phylogeny evolutionary relationships among groups of organisms Piping and instrumentation diagram P&ID Phase diagram used to present solid/liquid/gas information Plant Diagram Pressure volume diagram used to analyse engines Pourbaix diagram Process flow diagram or PFD used in chemical engineering Program structure diagram R Radar chart Radial Diagram Requirement Diagram Used in SysML Rich Picture R-diagram Routing diagram S Sankey diagram represents material, energy or cost flows with quantity proportional arrows in a process network. Sentence diagram represents the grammatical structure of a natural language sentence. Sequence diagram from UML 8/9 and SysML SDL/GR diagram Specification and Description Language. SDL is a formal language used in computer science. Smith chart Spider chart Spray diagram SSADM Structured Systems Analysis and Design Methodology used in software engineering Star chart/Celestial sphere State diagram are used for state machines in software engineering from UML 7/9 Swim lane Syntax diagram used in software engineering to represent a context-free grammar Systems Biology Graphical Notation a graphical notation used in diagrams of biochemical and cellular processes studied in Systems biology System context diagram System structure Systematic layout planning T Timing Diagram: Digital Timing Diagram Timing Diagram: UML 2.0 TQM Diagram Treemap U UML diagram Unified Modeling Language used in software engineering Use case diagram from UML 5/9 and SysML V Value Stream Mapping Venn diagram Voronoi diagram W Warnier-Orr Williot diagram Y Yourdon-Coad see Edward Yourdon, used in software engineering
ram、rom可以是在相同的寻址空间或是各自的寻址空间。 代码段可以指向ram也可以在rom，数据段也可以指向ram或是rom。 例如当年红白机，主板上是两片2k的ram，插卡上对应rom存放程序代码和数据资源，可能有保存游戏数据的电池备份的小ram。
ROM 刷机是什么？ 刷ROM是指更改或替换了手机原版系统中固有的一些语言、图片、铃声和软件版本或者操作系统等等，可以使手机功能更加完善（也可增加手机可玩性），类似于电脑中的重装系统。
2.ROM 只读存储器（ROM）是一种只能读取数据，不能写入数据的存储器，数据一旦写入之后就无法更改。 ROM存储器中的数据是固化在芯片中的，断电后数据不会丢失。 ROM被用于存储固化的程序和数据，例如BIOS、固件等。 常见的ROM有EPROM、EEPROM、Flash等。
内存可以有RAM和ROM两个区，早期就是这么整的，程序在提前做好的ROM里，RAM提供程序运行时所额外需的读写空间。 现在操作系统利用内存权限管理，程序看到的内存也是这样的【这就是“0x00000000不可为写”这个报错的来源】。
电脑中的rom对应的是哪个硬件？ 看计算机导论时，看到rom ram 外部存储有点晕，后来大概弄明白，ram是随机存取，断电就没数据，那对应的是内存条，硬盘应该算外部存储。 计算机导论说… 显示全部 关注者 18
RAM（随机存取存储器Random Access Memory， RAM）和ROM（只读存储器Read Only Memory，ROM）的区别: 1、构造不同:RAM指的是随机存储内存。而ROM属于只读内存，是一种固态半导体存储器。 2、用途不同:RAM和ROM分别对应电脑的内存和硬盘设备，内存 (RAM)负责应用程序的运行和数据交换，而硬盘 (ROM）就是一个存储 ...
迷你手机网 netded ，可以试试，只要里面有的rom包，基本都是真的。
手机里的rom和ram和计算机里的rom和ram是一样的：都是存储器的名字。 存储器分为随机存储器RAM 和 只读储器 ROM两种。 ROM (read only memory)只能读取而不能写入，通常用来存储生产厂家固化写入的程序数据,在特定专业条件下才可以写入。 RAM (random access memory)可以随机进行读写操作，用来存取各种动态的 ...
网站的描述是“The Worlds Largest Rom & Emulation Site”，看样子似乎口气很大呢！ 不知有没有真材实料？ 稍等，还记得我刚才说过的曾经的rom站点王者 .emuparadise.me.uk 吗？ 打开以后似乎链接到了熟悉的地方呢！ 没错！ 链接到了这个网站。 不知她们到底有什么关系呢？
ROM：只读存储器，其特性是一旦存储数据就无法再将之改变或删除，通常用在不需经常变更数据的电子或电脑系统中，并且资料不会因为电源关闭而消失。 ROM中存储的数据是在制造过程中或通过特殊的编程设备写入的。写入后，存储单元的状态被固定，一般通过半导体器件的物理特性来表示数据 ...
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