The operating system mode. Processors operate either in kernel mode or "user mode." Also called "supervisor mode," the kernel mode enables the OS (kernel) to execute "privileged instructions," which ...

The kernel this. The kernel that. People often refer to one operating system's kernel or another without truly knowing what it does or how it works or what it takes to make one. What does it take to ...

A kernel extension (kext) adds functionality to a macOS operating system (OS). The kernel is the heart of the OS, and extensions may add security or functions required to run in revised hardware, such ...