What is the core of an operating system called?

The core of an operating system is called the kernel. The kernel serves as the central component that manages system resources, including memory, CPU, and peripheral devices, and acts as a bridge between the hardware and software applications. It is responsible for essential functions such as process management, memory management, and hardware communication, ensuring that programs can run efficiently and effectively.

The kernel operates at a low level, providing fundamental services needed for all other parts of the operating system to operate smoothly. In contrast to other components, such as drivers, which help the OS interact with hardware devices, or the shell, which provides an interface for user interaction with the OS, the kernel is integral for overall system functionality and stability.

Understanding the kernel's role is crucial in grasping how operating systems operate and manage their resources.