電氣、智能-201308課件7單詞

Vocabulary6

Computer(2)1.n.

域，字段

n.

操作碼n.

操作數(shù)n.

指令

n.

程序

instructionsetstoredprogramapplicationprogramminginterface2.n.

文件

n.

腳本documentfilearchivefilebackupfiledestinationfile

databasescript3.n.

調(diào)制

pulsecodemodulationquadratureamplitudemodulationVocabulary3:Computer(2)指令集存儲程序應用程序接口文檔文件目標文件存檔文件備份文件數(shù)據(jù)庫腳本脈沖編碼調(diào)制正交幅度調(diào)制4.adj.

單一的，單工的

adj.

全雙工的simplexcommunicationfullduplexcommunication5.n.信道

adj.

多路傳輸?shù)模瑥陀胏hannelcapacitychannelmultiplexingtime-divisionmultiplexfrequency-divisionmultiplex6.差錯控制n.校驗n.校正errorcorrectingcodeforwarderrorcorrectionparitycheckredundancycheckevenparityoddparitynoparitycheckparitybitbiterrorrate**transmissiondisturbance傳輸干擾signalnoiseratio信噪比Vocabulary3:Computer(2)單工通信全雙工通信信道容量信道復用時分復用頻分復用奇偶校驗冗余校驗偶校驗奇校驗校驗位誤碼率7.高級語言

機器語言DDLXMLHTMLSQL源代碼

目的代碼

***pointer指針，指示器addressn.

尋址retrievev.

檢索8.n.協(xié)議TCP/IP

傳輸控制協(xié)議/因特網(wǎng)互聯(lián)協(xié)議

FTPVocabulary3:Computer(2)datadefinition/manipulationlanguage

數(shù)據(jù)定義/操作語言extensiblemarkuplanguage可擴展標記語言hupertextmarkuplanguage超文本鏈接標志語言structuredquerylanguage結(jié)構(gòu)化查詢語言TransmissionControlProtocol/InternetProtocolfiletransferprotocol文件傳送協(xié)議9.可編程邏輯控制器PLCsaredisklesscompactcomputersincludingallthenecessarysoftwareandhardwareinterfacestotheprocess.AtypicalPLCconsistsinapowersupply,aCPUwheretheuserprogramruns,input/outputmodulesandoptionalcommunicationmodules.TheavailableI/Omodulessupportawiderangeofelectricalinterfaces:analogmodule

(+/-10V,+/-1V,4-20mA,etc.),temperaturemeasurement,digitalmodule,TTLmodule,RS232module,etc..PLC-basedsolutionsarewelladaptedtotwo-levelcontrolarchitectureswherethefront-endlayerhastobeautonomousandindependentfromthesupervisionlayer.Vocabulary3:Computer(2)PLCsoperateinapollingmodewithapreciseexecutioncycle,whichconsistsinthreesteps,termed“readinputs”,“operateuserprogram”and“writeoutput”.ThedevelopmentofPLCprogramsistwofolds.OneshalldefinethehardwareconfigurationofthePLCandproducetheuserprogramsourcecode.StandardizedprogramminglanguagesofPLCs:sequentialfunctionchartsladderdiagramfunctionblockdiagramstructuredtextinstructionlistVocabulary3:Computer(2)順序功能圖梯形圖功能塊圖結(jié)構(gòu)化文本指令表10.單片機A

microcontroller

(or

MCU)

is

a

computer-on-a-chip,which

is

a

type

of

microprocessor

emphasizing

self-sufficiencyandcost-effectivenessin

contrast

to

a

general-purpose

microprocessor

(the

kind

used

in

a

PC).

Asingle-chipmicrocomputerinvolvesaROM,aRAM,aCPU,parallelI/Omodules,serialI/Omodules,timer/counterfacilities

andtimingcomponents.*****strobev.

選通，發(fā)選通脈沖*****most-significantbit(MSB)最高有效位*****least-significantbit(LSB)最低有效位Vocabulary3:Computer(2)11.數(shù)字信號處理器A

DSPisasuper-fastchipcomputer,whichhasbeenoptimizedforthedetection,processingandgeneration

ofrealworksignalssuchasvoice,video,music,etc.inrealtime.12.嵌入式系統(tǒng)Anembeddedsystemisdefinedas“amicroprocessorbasedsystemthatdoesnotlooklikeacomputer”or“acombinat