Dedicated Server and Cloud Server are two different types of server architectures. They have some key differences, including hardware, deployment methods, elasticity, performance, and management.

　　Hardware architecture:

　　Dedicated server: It is a physical server, which is exquisitely monopolized by a user. It has dedicated hardware resources, including processors, memory, storage and network bandwidth.

　　Cloud server: It is a virtual machine instance divided by virtualization technology on the physical server. Multiple cloud servers can share resources of the same physical server.

　　Deployment method:

　　Special server: It is deployed on a specific physical server and usually needs to rent the entire server at the data center.

　　Cloud Server: It is deployed through the platform of cloud service providers, and instances of virtual machines can be created, started, stopped, and deleted as needed.

　　Elasticity and scalability:

　　Dedicated server: Hardware resources are fixed, and new physical servers are usually required when expanding.

　　Cloud server: It has elasticity and scalability. It can dynamically adjust resources according to demand, including increasing or reducing virtual machine instances, adjustment configuration, etc.

　　Performance and response time:

　　Dedicated server: Due to exclusive hardware resources, more stable and predictable performance is usually provided. The response time is relatively stable.

　　Cloud server: Performance may be affected by other factors of shared resources and cloud platforms, but cloud service providers usually provide various performance adjustment options.

　　cost:

　　Dedicated server: There are usually high starting costs because the entire physical server needs to be leased.

　　Cloud Server: Provide more flexible billing models, usually charging the resources and time used, which is more suitable for flexible demand.

　　Management and maintenance:

　　Dedicated server: Users are responsible for the management, maintenance and upgrade of the server, and there is a professional IT team for operation.

　　Cloud Server: Cloud service providers are responsible for hardware management. Users can focus on the development of applications and services. The cloud platform provides some automated management tools.

　　Applicable scene:

　　Special server: Applicable to applications with high performance requirements and direct control of hardware, such as large databases and high performance calculations.

　　Cloud server: applications for elastic demand, high flexibility requirements, and applications with changes in resources, such as web applications, development and testing environments.

　　Selecting a dedicated server or a cloud server depends on business needs, budgets, hardware control requirements, and demand for elasticity and scalability. In many cases, companies may choose to use special servers and cloud servers to meet different business needs.