文档介绍：putationalThinking puterScience:AnOverview Chapter1:DataStorageRuiMaoShenzhenUniversity掘逸丙恬硼瑚赏旺去轮夕离仍画卞垮砖兼嘲腐员庙谰抉始沪际丫力拔素鸯计算机导论进制计算机导论进制Chapter1:(位):BinaryDigit(0or1)(布尔)Operation:Anoperationthatmanipulatesoneormoretrue/falsevaluesSpecificoperations:AND(与)OR(或)XOR(exclusiveor,异或)NOT(非),OR,andXOR(exclusiveor)(门):putesaBooleanoperationOftenimplementedas(small)putersareconstructedVLSI(VeryLargeScaleIntegration),OR,XOR,(16进制表示):AshorthandnotationforlongbitpatternsDividesapatternintogroupsoffourbitseachRepresentseachgroupbyasinglesymbolExample:(主存、内存)Cell:Aunitofmainmemory(typically8bitswhichisonebyte(字节))Mostsignificantbit:thebitattheleft(high-order)endoftheconceptualrowofbitsinamemorycellLeastsignificantbit:thebitattheright(low-order)endoftheconceptualrowofbitsinamemorycellMightbetheotherwayforsomemachines舟钉沮桩和蝇碴夫险悬剪辞隅勒隘洱掌缮踞浦栈奎和际剖农统失蔫囤甘氮计算机导论进制计算机导论进制