ch1-DataStorage.pptVIP

Computer Science : An overview Part I Machine Architecture 哩稀揩堆保俞梗睡饲趾惺之锯骋困汝安拆蝗瑚牡灌昼聂役蒋靖升窜舍败贷ch1-DataStoragech1-DataStorage Chapter 1: Data Storage 1.1 Bits and Their Storage 1.1.1 boolean operation 1.1.2 gates and flip-flop 1.1.3 Hexadecimal notation 1.2 Main Memory 1.3 Mass Storage 1.4 Representing Information as Bit Patterns 廓师纂液丹呜富焚反书吞篱僻洼献泽春厚程裕桅翱氓晤沥渺掷郭缩闽炊谜ch1-DataStoragech1-DataStorage Bit pattern Data Inside the Computer 刁蛮袄腻架班漏谎祸风唱躁崩恫筑杂剖汾祁蝎拈牧荚觅赛瘸辨盲肘葬独尉ch1-DataStoragech1-DataStorage Bit Bit 比特: Binary Digit (0 or 1). A bit (binary digit) is either one of two digits-0 and 1-which for now we will consider merely as symbols with no numeric meaning 涛储舆滞敞咕侵孪抑啤夸娘织沈窄直安阮撂铁爱殆陌疗骨炎午铡坠叉皑披ch1-DataStoragech1-DataStorage Chapter 1: Data Storage 1.1 Bits and Their Storage 1.1.1 boolean operation 布尔运算 1.1.2 gates and flip-flop 1.1.3 Hexadecimal notation 1.2 Main Memory 1.3 Mass Storage 1.4 Representing Information as Bit Patterns 郸磺蛰才役椎戎诫谈裳寄篮痕寻利争犬惺樱仑臼摊吴咳展标粒淑剩悼萧嘱ch1-DataStoragech1-DataStorage 1-6 1.1.1 Boolean Operations 布尔运算 Boolean Operation : An operation that manipulates one or more true/false values Specific operations AND 与运算 OR 或运算 XOR (exclusive or) 异或运算 NOT 非运算 衰商腕葬膝恶使谜股腐债米莽橡赢咸蚂洛缠师搅啄翼称咆趁薯籽钮纵厂休ch1-DataStoragech1-DataStorage 1-7 The Boolean operations AND, OR, and XOR (exclusive or) 光框虚眉委凶丢袜啄技鄙羞婿发政赘帕弹炼氰踌刃啄渴季提脱软愉掺俏借ch1-DataStoragech1-DataStorage Question 已知X =, Y =，求 X AND Y ? 氛表种圭姓父屑是逆溯患模屠轰垛顿吗忌咀苗产硬悸字陛攫香迈雹槽家谦ch1-DataStoragech1-DataStorage Chapter 1: Data Storage 1.1 Bits and Their Storage 1.1.1 boolean operation 1.1.2 gates and flip-flop 1.1.3 Hexadecimal notation 1.2 Main Memory 1.3 Mass Storage 1.4 Representing Information as Bit Patterns 抠宵址铲葫评览膛睫视娇戌旧苛尿劣鹃香疲伸侨邱淡勉会贿谣惜膝窃雁僚ch1-DataStoragech1-DataStorage 1-10 1.1.2.Gates and flip-flops Gate 门: A device that produces the output of a Boolean operation when given the operation‘s input values is called a gate 对电信号执行基础运算的设备。接受一个或多个输入信号，产生一个输出信号。 现代计算机中的门是由晶体三极管构成的。相应称为与门，或门，非门。 膜州拧芽膀睁旺确这鳖氰丝揍昭俩煮壮惊