Consider the possibility of purchasing a machine that is already set up with Linux from a retail outlet. Is there more than one operating system (OS) from which to pick? Kindly include the brand as well as the model.

When creating Linux, why did its creators choose with a kernel that doesn't allow for preemptive multitasking? In a single-processor system, why would you want to use a non-preemptible kernel? But why does employing a system with several processors reduce the value?

Consider the possibility of purchasing a machine already set up with Linux. Is there more than one operating system to choose from? Specify the make and model, if possible.

The original Linux developers built a non-preemptible kernel for unknown reasons.In a setup with just one CPU, what good does a non-preemptible kernel do? However, with a system with several processors, why does this benefit decrease?

Give us your take on Linux and its characteristics. If you can, please be as detailed as possible.

Linux creators opted for a non-preemptible kernel from the outset because...