Reverse Engineering and who uses it
Reverse engineering is basically disassembling stuff to study and observe each specific part that makes up that one whole object then you want to improve upon it. So for example, there is a CPU in front of you. You take apart the case and then start removing the motherboards and the RAM etc... You study each piece and how it all connects, then you might get a some better RAM or some better motherboards and stick it into the CPU. Then you put it all together.
That was reverse engineering in the simplest and easiest form.
That was reverse engineering in the simplest and easiest form.