§1 共形映射的概念 §2 分式线性映射 §3 唯一决定分式线性映射的条件 §4 几个初等函数所构成的映射

Sequential Circuit Models Yo Combinational logic Universal combinational circuit model No memory units No feedback from logic outputs back to the inputs

FLIP-FLOPS Add the certain combinational logic circuit to the input of the original flip- flop New

Hazard o Boolean algebra does not account for propagation delays through signal paths of actually circuits. o The delay can cause glitches to occur. A glitch is an unwanted signal, usually short pulse caused by the transient behavior of signal path that have different delays A hazard exists any time the potential for glitches is present

Digital system: entity can process, transfer and store any kind of digital signals is Composed of individual digital logic circuits which are designed to perform specified function

Positional Number System Number system use positional notation to represent value. The position of the character(numeral) in a character string (collection of possible numerals) indicate value as well as the character itself. Radix (base) is the number of numeral characters in the character set of positional number system. Position Weiaht is a constant that represents the value of a position. Different position has different weight. It is the integer power of radix

Chapter 15 Objectives After you have read and studied this chapter, you should be able to Develop large programs incrementally using multiple objects from object categories controller, storage, application logic, and user interface. Develop large programs that are extensible and modifiable by applying polymorphism and inheritance effectively in program design. Document how the methods in the classes are related by using method call sequence diagrams

Chapter 13 Objectives After you have read and studied this chapter, you should be able to Write GUI application programs using Frame, Dialog, and Button objects from the java. awt package. Write GUI application programs with menus using Menu, MenuItem, and MenuBar objects from the java.awt package. Write event-driven programs using Java's delegation- based event model. Write GUI application programs that process mouse events