QingCloud is a cloud computing platform that provides IaaS-based flexible cloud services, and supporting private network, calculation based on second, open API, comprehensive monitoring, and multiple real-time copy security policy. The Company's products include Image and Instance. Image is a machine template that includes software and necessary configuration. As basic software, operating system is indispensable. Customers can also place any application software such as database and middleware into Image.Instance is the image replica that runs on QingCloud in the form of virtual machine. Customers can create as many instances as needed based on one Image. When creating Instance, one needs to specify the configuration of CPU and memory. QingCloud allows to specify the number of CPU and memory as required, and allows to make adjustment at any time after creating Instance.