信息技术中考知识点.pdfVIP

信息技术中考知识点--第1页

信息技术中考知识点

___

1.EnteringtheWorldofn

1.1MeaningandBasicFeaturesofn

___messagesforpeople。usuallyincludingdata。content。

andmeaning。ncanbeexpressedinlanguage。text。symbols。

signals。ns。codes。etc。Thebasicfeaturesofnarestorability。

transferability。processability。___.

1.2MeaningandnofnTechnology

nTechnology(IT)referstotherelated___n。storage。

processing。n。andnofn。ThecoretechnologyofITis

computertechnology。whichmainlyconsistsofmicroelectronics。

n。computer。and___.

1.3EncodingMethodsforn(Binary。ASCII。andChinese

nalStandardCodefornInterchange)

___binarycode。Text。numbers。sound。images。and

otherdataneedtobe___eendataandcodesiscalledcoding。The

widelyusedcodingruleforEnglishlettersandnumericsymbolsis

信息技术中考知识点--第1页

信息技术中考知识点--第2页

theAmericanStandardCodefornInterchange(ASCII)。whilethe

codingusedforChinesecharactersinChinaisGB-2312-80

(publishedin1981)(ChinesenalStandardCodefornInterchange)。

。InHongKongandTaiwan。

1.4___

Sensoryn。tools。literaturesearch。listeningto。watching

TV。browsingthe。andconductingsurveysandresearch.

1.5UseofSearchEngines(Full-TextSearchEnginesand

DirectoryIndexSearchEngines)

Full-textsearchenginessearchforwebpagesaccessibleon

the。alsoknownaswebsearchengines。___indexsearchengines

store___。___.

1.6DownloadingOnlinen(SavingPartofnonWebPages。

SavingEntireWebPages。andFileDownloading)

Tosavepartofthenonawebpage。selectthetext。pictures。

andot