Question1:

A kernel is the core of an operating system (OS). It is the software that manages the computer's hardware and resources, and provides a platform for running other software. The kernel is responsible for tasks such as memory management, process scheduling, device drivers, and file systems.

Question 2:

Linux is a kernel, not an OS. Although it is the foundation of the Linux operating system, the Linux kernel does not offer all of its features.

The central component of an operating system is its kernel. It is the lowest tier of software that communicates with the hardware of the computer.

The kernel is in charge of controlling the resources of the computer, including memory, the CPU, and I/O devices.

A kernel, a shell, a file system, and a collection of utilities are the typical components of an operating system.

Users can communicate with the operating system using the shell, which is a command-line interface.

Question3:

No Linux operating system is not immune to malware. However, it is less susceptible to malware than other operating systems, such as Windows.

The Linux kernel is more secure than other kernels. The Linux kernel is designed with security in mind, and it has a number of features that make it more difficult for malware to infect a system. For example, the Linux kernel does not have a concept of "root" user, Linux distributions are typically more up-to-date than Windows. Linux users are more security-conscious than Windows users. Linux users tend to be more familiar with security best practices.