Summary

The os_kernel is the core that connects user_space to hardware. It handles process_scheduling, memory_management, device_drivers, and system_calls. It responds to interrupts and enforces privilege_levels. Common designs include monolithic_kernel, microkernel, and hybrid_kernel. The kernel manages resources and keeps processes isolated. User programs request services through system_call_interface. At boot, the loader starts the kernel and initializes drivers and the scheduler. Remember: kernel_space is trusted, user_space is restricted.