考试管理系统，能够实现老师浏览，学生答题，提交试卷，显示得分等功能-Test management system Test management system to achieve the teacher views the students answer, submitted papers to show scores and other functions

微软认证考试教程-　微软认证是微软公司设立的推广微软技术，培养系统网络管理和应用开发人才的完整技术金字塔证书体系，在全世界90多个国家认可有效，并且可以作为薪资职位变迁的有效证明，公司资质实力证明和移民加分等多项益处！-Microsoft Certification Exam Guide- Microsoft Certified Microsoft set up to promote Microsoft technology, culture system network management

本设计为学校打铃管理系统，使用VHDL设计，根据打铃功能不同输出不同的音乐,工作模式包括正常上课模式、考试模式、放假模式-The design management system for the school bell, the use of VHDL to design, according to different output different music in Bell functions, working modes including normal class mode, test