A personal computer designed to stay in one location, typically consisting of a separate monitor, keyboard, and main unit. Like a workstation that provides maximum power and screen space.
Offices and homes often have desktop computers for heavy work like video editing, gaming, or running multiple programs simultaneously.
A desktop computer is on-premises end-user hardware, not a cloud provider service. Cloud equivalents are virtual desktops (VDI/DaaS) that deliver a desktop experience from cloud-hosted virtual machines.