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Service program



Synonymserviceprogramsgenerallyrefertoserviceprograms.

Types

Serviceprogramsarealsocalledsupportsoftware,whichisatypeofprogramdesignedtohelpusersuseandmaintaincomputersandprovideservicemethods.Withthecontinuousadvancementoftechnologyandthecontinuousexpansionofapplicationfields,alargenumberofserviceprogramsareconstantlyupdatedandemerging,andsomearealsointegratedintocomponentsorkits.

1.Editingprogram

Theeditingprogramprovidesuserswithagoodwritingenvironment.Inthisenvironment,userscanconvenientlyperformaseriesofoperationssuchasinput,modification,insertion,deletion,copying,andmovementoftext,graphics,andtables.

2.Connectionassemblyprogram

Thefunctionoftheconnectionassemblyprogramistoconnectseveraltargetmodulesandcorrespondinghigh-levellanguagelibraryfunctionprogramstoproduceexecutablerunningmodules.

3.Errorcorrectionprogram

TheerrorcorrectionprogramisalsocalledDEBUG,anditsfunctionistohelpuserscheckerrorsintheprogramforcorrection.Ofcourse,theuseoferrorcorrectionprogramsrequirestraininginmachinelanguageandassemblylanguage.

4.Diagnosticprogram

Diagnosticprogramismainlyusedtohelpusersrepaircomputerhardware.Itcanperformfaultlocation,componentinspectionandtesting,andsomehavethelevelofanexpertsystem.

5.Toolsoftware

Toolsoftwareissomesoftwarethathelpsusersusecomputersanddevelopsoftware,suchassoftwaretestingtools,structuredflowchartdrawingprograms,viruscheckingandeliminationsoftware,etc.

6.Packagesoftware

Softwarepackageisabundleofseveralapplicationsortoolsoftware,alsocalledintegratedsoftware,componentorpackage.ThefamoussuiteOfficeintegrateswordtableprocessingsoftwareWord,slideproductionsoftwarePowerPoint,spreadsheetExcel,databasemanagementsystemAccess,emailmanagementsoftwareOutlook,webpagecreationsoftwareFrontPage,browsersoftwareInternetExplorer,photoeditorPhotoDrawandElectronicpublishingsoftwarePublisher,etc.Inaddition,Kingsoft’sWPS2000,Novell’sPerfectOffice,andLotus’Smartsuitareallveryusefulcomponentsforofficeautomation.

Features

Serviceprogramsarepartofthesystemsoftware.Thesystemsoftwarealsoincludestheoperatingsystem,languageprocessingprogramsofvariousprogramminglanguages,faultdiagnosisprograms,andotherserviceprograms.

Someserviceprogramsarestartedbydefaultwhenthesystemisturnedon.Ifyouforceittobeturnedoffmanually,thecomputermaynotworkproperly.Itisnotrecommendedtoclosetheserviceprogramsthatyouarenotfamiliarwith.

Functionintroduction

Serviceprogramsrefertoasetofprogramspreparedtoprovideservicemeansforuserstomaintainandusecomputers.Suchprogramscancontainawiderangeoffunctions.Generallyrefersto:programinputandassembly,editing,diagnosis,filecopying,prompthelp,etc.Withthecontinuousdevelopmentoftechnology,manyauxiliaryprogramstohelpuserscontinuetoemergeinlargenumbers.Althoughthecomputercanautomaticallyexecutetheprogramcontinuously.However,intheprocessfrominputtingsourceprogramstoformingexecutabletargetcode,usersstillhopetoobtainthehelpofacomputertohaveanidealenvironmentthatisasconvenientaspossible,whichrequiresahuman-computerinteractioninterfaceandenvironment.Someprogramsworkinteractively.Therefore,servicemethodshavebeenfurtherdevelopedintoanintegratedoperatingenvironmentforhuman-computerinteraction,andconceptssuchashuman-machineinterfaceandhuman-machinesystemhaveemerged.Themodernhuman-computerinteractionenvironmenttendstobebasedongraphicstechnology.

1.Programinput

Therearethreecommonmethodsforprograminput:

(1)Terminalkeyboardinput,entertheprogramanddataintothecomputerthroughthekeyboardontheterminal.Forasingle-usersystem,onepersonmonopolizessysteminput,andforamulti-terminalsystem,itacceptsandprocesseskeyboardinputinatime-sharingmannerunderthesupportoftheoperatingsystem.Theterminalinputmethodisusedtocreatefilesusingcommandsprovidedbytheoperatingsystem,andoftenexecuteeditingprogramstoedittheprogramfilesanddatafilesinputbytheuserasrequired.Inmicrocomputersystems,terminalinputmethodsarecommonlyused.

(2)Papertapeinputorcardinput.First,theprogramanddataaremadeintopunchedpapertapeorpunchedcard,andtheninputintothecomputerthroughthepapertapeinputmachineandthecardinputmachine.Wheninputting,thehostexecutesabootprogram,andguidestheinputbufferinthememoryaccordingtoacertainformattotheinformationsentfromtheinputmachine,andchecksitduringtheinputprocesstodeterminewhethertheinputinformationiscorrect.Thesystemprovidesconnectionmacroinstructionstorealizetheconnectionandassemblybetweenprograms.

(3)Offlineinputmethod.Inbatchprocessingsystems,inordertomakefulluseofthehigh-speedCPUprocessingcapabilities,ofteninanofflineenvironment(withoutusingahigh-speedhost),theuserfirstenterstheprogramanddataintothetapeordiskthroughtheinputmachine,suchaspapertapeinputmachine,cardinputThesystemoperatorassemblesthetapesanddiscstothehostsystem,andthentransfersthemtothemainmemorybythejobschedulerwhenconditionsareripe.

2.Editing

Editingprogramisakindofserviceprogramthatisoftenused.Itenablesuserstoeasilyinputandedittheirownprogramfilesordatafileswiththehelpofakeyboardandadisplayterminal,suchasdeleting,modifying,andinsertingSomecontent.Carryoutrelocation,assembly,copying,etc.Thesystemprovidesuserswithasetofeditingcommands.Theusercanissuecommandsthroughthekeysforediting,andthecursorindicatesthepositionoftheoperation.

Theeditingfunctionisdividedintotwotypes:lineeditingandscreenediting.Thelineeditingmethodneedstospecifythelinenumber,andthenusethislineforthecurrentline.Youcancopyordeletethecontentoftheline,oraddseverallines,ormovethecursortoacertainpositioninthelinetodelete,modify,andinsertwithinaline.Thescreeneditingmethodismoreconvenient.Youcanmovethecursortofindanylineintheentirefile,andthenperformeditingoperations.Obviously,youcannotonlyusetheeditingfunctiontoeditthesourceprogram,butalsoeditothertextualdocuments,reports,newspapers,books,etc..Manyunitsnowprintsummaryreports,issuenotices,compilebooksandperiodicals,andtypeset,allusingcomputersforediting.

3.Windowtechnology

Themonitorprovidesadisplayscreen,butweoftenhavesuchaneed:Inadditiontodisplayingbasiccontent,oneorseveralpartialareasprovideauxiliarydisplaycontent,suchasmenusandpromptmessages.Enlargepartofthescreenorobject,somerunningresults,etc.;ordividethedisplayscreenintoseveralareastodisplaydifferentcontents,suchastherunningstatusofmultipleprograms.Thesepartialdisplayareascanbecalledwindows,andthedevelopmentofwindowtechnologyhasmadethedisplaymulti-layered,multi-faceted,andmoreflexible.

4.Human-computerinteractionenvironment

Whendesigningsystemsoftware,itisnecessarytodetermineaclearhuman-machineinterface,thatis,whatmethodsandcommandstheoperatorcantaketooperatethecomputer,andinwhatwaysandformsthecomputerresponds.Tothisend,inadditiontothecommandprocessingprogramintheoperatingsystem,itisoftennecessarytoconfigurecorrespondingsupportingsoftware,suchasmenus,windows,graphics,promptfunctions,trackingprograms,editing,connectionassembly,etc.,whichformsanintegratedhuman-computerinteractionenvironment.Ifitiswelldesignedandeasytooperate,itcanfullymobilizethepotentialofthecomputer.Getasmuchhelpfromthecomputeraspossible,andtheoperatingenvironmentisvividandintuitive.Peoplecallitafriendlyhuman-computerinteractionenvironment.

Examplesofserviceprograms

Inordertoimprovetheefficiencyofthemachineandsimplifytheprogramdesign,someserviceprogramsareintroducedhere.Theserviceprogramcanbeusedasanauxiliarytooltoadjusttheprogram.Widelyusedwillgreatlyreducetheprogrammingwork,reduceoravoidcertainerrors(suchaspapertapeerrorsandcopyerrorswhenusingsubroutines,etc.).

Commonlyusedserviceprogramsinclude:internalstoragezeroingprogram,secondaryinputprogram,checkingsumprogram,grouptransmissionandgroupcomparisonprogram,groupprintingprogram,grouptranslationprogram.Theyaremainlyusedassomeauxiliarytoolstoensurethecorrectinputandadjusttheprogram.

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