Dedicated Server: A server is a physical device and serves only one customer. This provides complete control of resources (CPU, RAM, storage) and offers high performance. It is usually preferred for large businesses or large websites.
VPS (Virtual Private Server): A VPS is a virtual instance of a physical server. Multiple VPS can be hosted on the same physical server, but each one is isolated. Resources are shared, but you can use your own operating system and configurations. Ideal for smaller businesses and websites.
VDS (Virtual Dedicated Server): VDS is similar to VPS, but offers more resources and controls. VDS is usually suitable for large web projects and applications and offers more customization possibilities.