microkernel-based operating system

generate a one-sentence description for a given conceptual class.
# Response Format
Return only the sentence: "Description: [one-sentence description of the conceptional class]"

Class: microkernel-based operating system

A microkernel-based operating system is one whose minimal core runs only essential services (such as inter-process communication, basic scheduling, and low-level hardware management), while higher-level services like device drivers, file systems, and network stacks execute in user space as separate, isolated processes.