Server hosting and cloud server are two different hosting service models. They have some key differences, including infrastructure, resource management, flexibility and cost:

　　Infrastructure:

　　Server hosting: In the server hosting model, you rent or purchase physical servers. These servers are usually placed in data centers, and the data center provides infrastructure and network connections. You have exclusive access to the hardware resources of these physical servers.

　　Cloud server: Cloud server is based on virtualization technology. It runs on physical hardware but uses a virtualization layer to divide it into multiple virtual machines. This means that multiple virtual servers can run on the same physical server, sharing hardware resources.

　　Resource management:

　　Server hosting: In server hosting, you have exclusive access to the resources of a physical server, including processors, memory, storage, and network bandwidth. Resource allocation is static and cannot be dynamically adjusted in a short period of time.

　　Cloud server: Cloud server allows dynamic adjustment of resources. You can increase or decrease the computing, storage and network resources of the virtual server as needed. This flexibility makes cloud servers more suitable for changing workloads.

　　Flexibility:

　　Server hosting: Server hosting is usually fixed and configuration changes require physical operations, so flexibility is relatively low. Upgrading hardware or changing configurations may require downtime.

　　Cloud server: Cloud server provides instant deployment, expansion and upgrade capabilities, and supports elastic expansion and automated operations. This allows users to respond more flexibly to changing needs.

　　Management and control:

　　Server hosting: Users have higher management and control over hardware, but they also need to bear more operation and maintenance responsibilities, such as maintenance and replacement of hardware failures.

　　Cloud server: The cloud service provider is responsible for the management and maintenance of the infrastructure, and users can focus on the development and management of applications.

　　Cost model:

　　Server hosting: Usually a pricing model is used, where users pay a fixed monthly or annual fee, regardless of the resources used. There may be a one-time payment for the purchase of hardware equipment.

　　Cloud server: Using a pay-as-you-go billing model, users pay according to the actual resources used. This model is more flexible and adapts to businesses of different sizes and needs.

　　Response time:

　　Server hosting: The purchase and deployment of hardware equipment may take a long time, and the response time is slow.

　　Cloud server: The deployment and configuration of cloud server can be completed in a few minutes, and the response speed is faster.

　　Choosing server hosting or cloud servers depends on specific business needs, budget and requirements for flexibility. Some businesses may choose to mix the two models to meet different business needs.