Linux and Kali Linux are: Kernel & OS

Here's a breakdown of these terms:

• Kernel: The kernel is the core component of the operating system that manages hardware resources and provides essential services for all other parts of the operating system and applications.
• Operating System (OS): The operating system is a software system that manages computer hardware and software resources and provides common services for computer programs. It includes the kernel and various system utilities and libraries.

Therefore, Linux is a kernel (the core component), and Kali Linux is an operating system (which includes the Linux kernel along with other software components tailored for specific purposes, such as penetration testing and security auditing).