Nowadays, almost everyone uses a computer. This is because computers are very useful for all of us in all kinds of activities involving our work, our school or the ones in which we are involved in our spare time. There are many types of data regarding computers which users might find very useful to become familiar with as certain knowledge is required for us to be able to work with these devices properly. There are two main computer parts: computer software and hardware. They are both very important for a computer to function and this is why users should try to learn as much as possible about their functions and about how they influence the performance of their computer in order for them to be able to work better with their PC and in this way to obtain better results.