《电子信息类专业英语》课件-第10章

Unit10TheApplicationsofComputers网络实用知识(一)——专业网站介绍

Forthemostpart,humanbeingscandowhatevercomputerscando,butcomputerscandoitwithmuchgreaterspeedandaccuracy.Thisisinspiteofthefactthatcomputersperformalltheircalculationsandoperationsonestepatatime.Acomputerisfasterandmoreaccuratethanpeople,butunlikemostpeopleithastobegivenacompletesetofinstructionsthattellitexactlywhattodoateachstepofitsoperation.Thissetofinstructions,calledaprogram,ispreparedbyoneormorepersonsforeachjobthecomputeristodo.

Theseprogramsareplacedinthecomputer’smemoryunitinbinary-codedform,witheachinstructionhavingauniquecode.Thecomputertakestheseinstructioncodesfrommemoryoneatatimeandperformstheoperationcalledforbythecode.

Computershavefoundtheirwayintomanyapplicationareasthatwereoncenotfeasible,andtherapidincreaseinthenumberandvarietyofcomputerapplicationshasmadethemasignificantpartofourlives.

ScientificCalculationsTheearliestcomputerswerecreatedtotakethejobofscientificcalculationswhichinvolvedcomplexanddifficultmathematicsortime-consumingtediousandrepetitive,numericalcalculations.

DataProcessingComputershavebeenwidelyusedindataprocessing,forexample,accounting,statistics,andcensus.Theoperationsinvolvedareverysimple—addition,subtraction,multiplicationanddivision,buttheamountofdataisoverwhelming,beyondhumancapabilityandpatience.Withdatabasesoftwareequipped,thecomputercanhandledatatothesatisfactionoftheuser.

ComputerSimulationComputersimulatingonasapowerfulanalytictoolwidelyusedinscientificresearchandengineeringdesigndemonstratesunrivalledadvantages.Withcomputersimulation,scientistsandengineersdonothavetobuildrealhardwaremodelsorprimaryprototypeswhentheyobserveanunknownphenomenon,analyzeacomplexprocess,designamachineorabuilding.Computersimulationisparticularlysignificantwhentheobjectunderstudyandexaminationiscostlyoritisimpossibletobuilditintoarealmodel.

Manycomputersimulationsystemshavebeendevelopedandprovedtobecost-effective,becauseusingcomputersimulationprograms,engineerscanaccomplishiterativeprocesseachtimebyinputtingdifferentschemesandparametersintotheircomputermodelsratherthanbuildingmanydifferentrealmodels.

ManagementManagementisoneofthedecisivefactorsthattellsuccessorfailureofanybank,corporation,firm,university,researchinstituteincompetition.Managementisacomprehensivetechnique,involvingeveryaspectoftheunit—task(products,inventions,creations,patents),personnel(administrators,clerks,technicians,servants),finance,realestate,equipment,etc.Computerizedmanagementissoftwaredesignedtoprovidetoolsformanagementinanyprofession,forexample,regulationofpersonnel,accounting,sales,inventory,taxation,wages,etc.

Everykindofsoftwareembodiestheup-to-datetheoryandmethodinitsprofession,andisrathereasytolearn.Moreandmoremanagementsoftwareproductsemerge,takingtheplaceofhumanmanagers.

网络实用知识(一)

——专业网站介绍

信息时代是资源共享的时代，学会从网络上获取信息也是技术人员必备的一项专业技能。因此，要求在学会进行信息检索的同时，了解一些专业网站的情况，这样可以有针对性地、更安全可靠地获取准确的技术资料。

1．/华军软件园

(1)主要栏目：系统工具，网络工具，安全工具，媒体工具，图文处理，桌面工具，管理软件，教育教学，游戏娱乐，数码软件，外语学习，电脑技巧。

(2)主要特点：该网站可以免费下载各类实用软件，安全可靠。

(3)相关网站：

/index.html天空软件站

/default.html霏凡软件站

2．/flwz/website/electron.htm电子网址大全

(1)主要栏目：电子元件，集成电路，无线技术，电子通信等近70个电子栏目。

(2)主要特点：涵盖了各类电子领域网址和电子类公司的信息资料。

(3)相关网站：

/搜电子网址

/dianzi/7788搜索网

3．/21IC搜索

(1)主要栏目：芯片资料，货源搜索，参考价格。

(2)主要特点：包括各种芯片资料的特点、参数；芯片管脚图与应用电路等。

(3)相关网站：

/电子元器件资料查询网

/dianzi/7788搜索网(含电子元器件、集成电路查询)

4．/index.htm电子之城

(1)主要栏目：各网站论坛，百G教程中心，共享版软件，教程和文摘，电子学入门，PROTEL入门，电子小制作，常用的资料，单片机入门，单片机资料，IC资料中心，综合宝典书，制作5000例。

(2)主要特色：该网站给电子爱好者提供了大量有用的信息和免费的