云计算是分布式计算、并行计算和网格计算的发展,或者说是这些计算机科学概念的商业实现。它是一种动态的、易扩展的、且通常是通过互联网实现的虚拟化的计算方式。用户不必具有云内部的专业知识,不需要了解云内部的细节,也不直接控制基础设施。通过对云计算问题的基本研究,进一步加深了对云计算的理解。 Cloud computing is the development of distributed computing, parallel computing and grid computing, or the commercial realization of these computer science concepts. It is a dynamic, scalable, and often calculated way of virtualization over the Internet. Users do not have to have in-cloud expertise, do not need to know the details inside the cloud, and do not directly control the infrastructure. Through the basic research on cloud computing, we further deepen the understanding of cloud computing.