ABSTRACT
This paper uses VMware virtual machine and ghost technology to design virtual simulation experiment teaching case. In the Vmware virtual machine environment, the approach of project-led and task-driven is used to carry out for related experiments such as computer system construction, BIOS system application and security, hard disk management, operating system installation, system backup and restoration, image and cloning of partition and disk and so on. With OBE as the experimental teaching concept, a comprehensive virtual simulation experimental teaching case is designed. The teaching case design implements CDIO thinking, emphasizes process education, and cultivates the ability to analyze and solve problems. In the teaching process, the ideas of case conception, case design, case implementation, case operation and result analysis and summary are implemented. This virtual simulation experiment teaching case relies on the private cloud server platform in the school, adopts B / S architecture, and is shared and opened through internet, which can facilitate the implementation of online and offline experimental teaching, as well as experimental exercises and assessments. During the COVID-19 epidemic, it provides online experimental teaching environment and student training environment for relevant experimental teaching in courses such as "Computer System Security", "Information Security", "Computer System Maintenance", "Operating System and Application", "Computer Assembly and Maintenance"and other courses. It effectively solves the problems of inconvenience to carry out relevant experimental teaching through physical machine and the inability to carry out experimental teaching and conducting experiments online. It helps to improve the quality and effect of experimental teaching, increase the rate of experimentation and save experimental cost. © 2021 ACM.