How to identify what is inside the computer case

This question while very hard for people who never saw a computer inside in their entire lives, it's very easy for me.

1- The computer has a power supply inside. Can you see that small box where you connect the biggest cables with three pins? Inside that's the power supply. Its the most dangerous computer component and if you open it you can kill yourself because of the electricity. Most of the power now up to 700 W.

2- The motherboard is the biggest thing you can see inside there. It's that huge electronic card where all the other things are connected to it. If this one is damaged nothing in the computer will work so if you see more than one part failing it's very possible that is the motherboard. They are also very expensive...

3- The CPU. Can you see that big cooler on the motherboard? On the bottom of it lies the CPU. It's the place where ALL the information is processes. If you want a faster computer most of the times you have only to modify the CPU or just buy a new one for safety. This thing can heat up to 400C without a cooler so be careful....

4- The RAM memories. Can you these electronic devices that are thing but big? It's the place the CPU uses to work. It should be called workspace instead. These things are very fast when compared to a hard disk but they offer little capacity.

5- The hard disk is the place where all the information processed in the CPU is stored. You can see that thing in the front of the box in black. It's very heavy and you can damage it easily if you drop it on the floor or smash it. This memory is big and permanent but unfortunately is very slow...

Now take a look at the graphic card. It's huge and the top class ones use two slots plus extra energy from the power supply but they are many times faster than the CPU itself and only by turning it on you can make them reach 75C and easily blow them up so be careful.

Finally take a look at all the other minor components in the computer all those electric cables around it connected to the power on button, to the lights, the cables connected to the hard disk, all those things must come from the mother board. You see if something hits the computer box, the shock wave goes directly to the motherboard and then to those components like the graphic cards which are directly connected.

That's all.