Computers are combined with software and hardware that communicate with each other. Once the computer is turned on, the first thing the system will do is launch the kernel for the initial configuration of software and hardware management. At the basic level of all computers, you must first download the kernel and device drivers. Understanding the kernel and device drivers can be quite daunting for most people. But once you start to understand the basic concept of the kernel, you can start to learn more about the basic tutorials of programming device drivers, etc. Let’s start with a basic concept of the kernel and device drivers.
Understanding the core
A kernel is an integral part of any operating system. When booting from any device, the kernel is one of the first programs to load. It facilitates the interaction between hardware and software. The kernel communicates with the hardware at a basic level before starting to communicate with the applications. The kernel is a very important part of the computer and has its own separate memory area. Where the kernel is protected from everything (software and hardware modifications for example). Once the kernel is loaded, it will start to manage application programs and system resources. It is best not to modify the kernel until you fully understand their capabilities or you can accidentally cause instability with the system. Potentially causing it to crash.
Understanding the device driver
In the initial configuration, the kernel will boot something called BIOS (basic input / output system). This is where the kernel first loads the various device drivers, before loading the operating systems. Device drivers would include a processor, motherboard, and other hardware before the computer begins to download applications. If you wanted to start learning device driver programming, I would recommend learning via Linux and their tutorials. Again, you don’t want to cause instability with your computer system. Linux will allow virtual simulation using their “kernel modules” to test your programming for the drivers for your device. Linux uses the C programming language and I would recommend learning it (please do not confuse yourself with the Microsoft programming language called C ++).
In conclusion, Kernel is integrated into the system to ensure that all systems work properly from the start. Without the kernel, the computer has no way of managing the hardware resources of their applications. The kernel is generally well protected against any external alteration, of which it has a separate dedicated memory space. Inside the kernel are device drivers that will download the system BIOS. This will ensure that the hardware system is running and that the kernel will then download the operating system / applications to ensure proper functioning. I highly recommend that you start learning through C programming and go through several tutorials to understand the general concept of programming device drivers, so as not to create instability or crashes on your computer system. Finally, Linux is definitely the best place to start your programming adventure.