Questions about the fundamental component of an operating system, which manages the allocation of resources to applications.

The kernel of an operating system is the lowest-level software component, managing the allocation of resources (processor time, memory, access to peripherals, etc.) to separate applications. Use this tag in addition to for questions that are specifically about the kernel part of an operating system. Please also use more specific tags about the aspect of the kernel that your question is about when applicable: , , …

For questions about kernel functions in machine learning, use .
For questions about kernels in parametrized complexity, use .