Linux Kernel
The Linux Kernel is the core component of the Linux operating system, responsible for managing hardware resources, providing system services, and enabling communication between software and hardware. It handles tasks such as process scheduling, memory management, device drivers, and system calls, forming the foundation for all Linux-based systems including servers, desktops, and embedded devices.
Developers should learn the Linux Kernel when working on system-level programming, embedded systems, or performance-critical applications where direct hardware interaction is required. It's essential for roles in operating system development, device driver creation, and kernel module programming, as it provides deep control over system behavior and resource optimization.