Which application architecture model operates everything from a single server?

The one-tier architecture model operates everything from a single server, meaning that all components of the application, including the user interface, business logic, and data storage, are located on that single machine. This setup is often seen in smaller applications or for development purposes where simplicity is essential.

In a one-tier model, users interact directly with the application on the server, and there are no additional tiers or layers to separate the components of the application. As a result, this model can simplify deployment and reduce latency since everything is contained within one physical or virtual machine. However, it may not be suitable for larger or more complex applications that require scalability, as the single server may become a bottleneck under increased load.