This report delves into the fundamentals of virtualization technology, elucidating its definition, benefits, and various applications. It explores how virtualization increases resource utilization by creating virtual versions of resources, enabling servers to host multiple server groups, and reducing IT costs. The report outlines scenarios where virtualization is beneficial, such as cost reduction, accommodating business growth, and saving space. It examines the advantages of server virtualization in improving application performance, reducing power consumption, and eliminating hardware vendor involvement. Furthermore, it highlights the importance of storage virtualization for data mobility and policy management. The report concludes with a summary of virtualization's impact, including vendor lock-in elimination, the need for policy management, and the technology's capacity to accommodate business growth. The report references works by Zhou et al. (2015), Verdouw et al. (2016), Kumar (2017), and Sahoo et al. (2017).