The answer is the Kernel.
In computing, the Kernel's job is to manage the I/O requests from the software on your computer and converts them into data processing instructions for the CPU (Central Processing Unit) and the rest of the electronic components of a computer.
Answer:
It is supported by many different experiments.
Explanation:
Scientific theory is based on different experiments and tested in different situations and environment will all aspects. If the experiment finds true then observations will become theory. It can be changed in future if it does not meet the newly proposed conditions. But It does not means that, every theory can be changed.
Yes you should install drives first
