Monolithic kernel

Okay kiddo, let's try to understand what a monolithic kernel is. Let's imagine your computer is like a toy box with different compartments. The only way to access the toys in each compartment is by opening the lid of the box. Similarly, your computer has different parts, like the memory, central processing unit (CPU), input/output (I/O) devices, and more.

Now, a monolithic kernel is like a system where all the compartments of the toy box are connected to each other. So, if you want to play with a toy from a different compartment, you don't have to open that compartment's lid. You can just reach in and grab the toy you want to play with.

Similarly, a monolithic kernel is a kind of operating system that has all the different parts, called functions, of the system connected to each other. So, if a program needs to use a certain function, it can just access it directly, without needing to go through a special interface like in other types of operating systems. This makes things faster, but it also means that if something goes wrong with one function, it can affect the whole system.

So, just like you might accidentally knock over all the toys in the toy box if you reach in too roughly, a problem with one function in a monolithic kernel can cause the whole system to crash. However, if everything is working properly, a monolithic kernel can be very efficient and fast in getting all of the parts of the computer to work together.