数字电子的技术,英文版,chapter02.ppt

CHAPTER 2NUMBER SYSTEMS,OPERATIONS,AND CODES数字系统、运算和编码;2-1 DECIMAL NUMBERS十进制数; Introductory Paragraph;Decimal Review;Nothing Special about 10!;2-2 BINARY NUMBERS二进制数; Introductory Paragraph; Counting in Binary; Counting Tennis Balls Going into a box from a Conveyor Belt; The Weighting Structure of Binary Numbers; Binary-to Decimal Conversion;2-3 DECIMAL-TO-BINARY CONVERSION;Repeated Division-by-2 Method;Repeated Multiplication-by-2 Method;2-4 BINARY ARITHMETIC;Binary Addition;Binary Subtraction;Binary Multiplication;Binary Division;2-5 1‘S AND 2’S COMPLEMENTS OF BINARY NUMBERS二进制的反码和补码;Finding the 1’s Complement of a Binary Number;Finding the 2’s Complement of a Binary Number;2-6 SIGNED NUMBERS带符号数;The Sign Bit;Sign-Magnitude System;Sign-Magnitude System;1’s Complement System;1’s Complement System;1’s Complement System;2’s Complement System;2’s Complement System;2’s Complement Advantage;The Development;The Development;Range of Signed Integer Numbers;By the Way;Floating-Point Numbers（浮点数）;2-7 ARITHMETIC OPERATIONS WITH SIGNED NUMBERS带符号数的算术运算;Addition（加法）;Overflow Condition（溢出条件）;Subtraction（减法）;Multiplication（乘法）;Multiplication;Division （除法）;Division;2-8 HEXADECIMAL NUMBERS（十六进制数）;Why Hexadecimal?;Relationship between hexadecimal and binary;Binary-to-Hexadecimal Conversion;Hexadecimal-to-Binary Conversion;Hexadecimal-to-Decimal Conversion;Decimal-to-Hexadecimal Conversion;2-10 BINARY CODED DECIMAL (BCD);Introductory Paragraph;The 8421 Code;The 8421 Code;BCD Addition;2-11 DIGITAL CODES AND PARITY数字编码和奇偶校验;Introductory Paragraph;The Gray Code（格雷码）;Binary-to-Gray code Conversion;Gray-to-Binary Conversion;Application Example;Application Example;Alphanumeric Codes（字母数字编码）;Parity Method for Error Detection（用于错误检测的奇偶校验法）;Homework