数字逻辑基础知识与习题指导：数制及编码，逻辑代数基础，逻辑门电路，组合逻辑电路等-Digital logic based on knowledge and exercise guidance: Number System and coding, the basis of logic algebra, logic gates, combinational logic circuit, etc.

数字钟的设计用到，数制、基本逻辑运算、逻辑门电路、组合逻辑电路、触发器、时序逻辑电路、脉冲的产生等数字电路知识。-Digital clock design used, number system, basic logic operations, logic gates, combinational logic circuits, flip-flops, sequential logic circuits, pulse generator and digital circuit knowledge