关键词: 物理机, 虚拟机, 实验教学, 实验环境

Abstract: Multiple virtual machines can be installed on a physical computer by using the virtual machine technologies. Some different experimental environments can be built on the same physical computer, and an open exper imental environment can be built to satisfy some different experimental requirements. The workload of laboratory maintenance can be mostly reduced; the quality of experimental teaching and the utilization of the laboratory resources can be improved. 

Key words: physical computer, virtual machine, experimental teaching, experimental environments