This is the part of the computer that will hold most of the information that is saved on the computer even if it is turned off. You can just imagine how it would be if this would not hold the information when you turn off your computer. It can make saving your files much harder than what you have expected.
The different drives of the computer and the video card are essential in making sure that you will save large amounts of data and retrieve them if needed. Some short amounts of data can only be stored in some of the sections of the processor.