【英文标准名称】:Informationtechnology-Unrecorded12,7mm(0,5in)widemagnetictapeforinformationinterchange-32ftpmm(800ftpi)NRZ1,126ftpmm(3200ftpi)phaseencodedand356ftpmm(9042ftpi)NRZ1
【原文标准名称】:信息技术.信息交换用12.7mm(0.5in)宽的空白磁带.32ftpmm(800ftpi)IBM式不归零(NRZI)、126ftpmm(3200ftpi)相位编码和356ftpmm(9042ftpi)IBM式不归零
【标准号】:BSEN21864-1994
【标准状态】:现行
【国别】:英国
【发布日期】:1994-06-15
【实施或试行日期】:1994-06-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:尺寸公差;机械试验;信息交流;信号电平;数字记录法;宽度;校正;延伸;数据记录;厚度;识别方法;尺寸;数据处理;覆层;磁带;不透明度;磁记录(数据);试验条件;长度;形状公差;记录特性;电阻;数据媒体;未用媒体;工作环境;卷筒(物料装卸设备);磁记录;反射系数;储存
【英文主题词】:Compatibility;Datamedia;Dataprocessing;Definition;Definitions;Digital;Digitalrecordingmethods;Digitalrecordingtechnique;Digitalsignals;Dimensions;Informationexchange;Informationinterchange;Informationprocessing;Informationprocessingsystems;Informationtechnology;Magnetictapes;Properties;Replaceability;Specification;Virginmedia
【摘要】:ThisInternationalStandardspecifiesthecharacter-isticsof12,7mm(0,5in)widemagnetictapewithreel,toenablemagneticandmechanicalinter-changeabilityofsuchtapebetweeninformationprocessingsystems.ThisInternationalStandardappliessolelytomag-netictapefordigitalrecordingusingtheNRZ1methodofrecordingat32ftpmmand356ftpmm(800ftpiand9042ftpi)orthephase-encodedmethodofrecordingat126ftpmm(3200ftpi)inwhichthedirectionofmagnetizationisnominallylongitudinal.NOTE1SomenumericvaluesintheSIand/orImperialmeasurementsysteminthisInternationalStandardhavebeenroundedoffandthereforeareconsistentwith,butnotexactlyequalto,eachother.Eithersystemmaybeused,butthetwoshouldbeneitherintermixednorre-converted.TheoriginaldesignwasmadeusingtheIm-perialmeasurementsystem.
【中国标准分类号】:L64
【国际标准分类号】:35_220_22
【页数】:24P.;A4
【正文语种】:英语