Many people know the steps on caring for a computer except children.
Even I do, computers have been around for sometime now that
they would know that by now.
Sometimes its not only the computer that gives problems or
malfunctions its the productivity of it, how poorly its been built by the company.
I sure have experienced that problem with the motherboard,
the capacitors it was.
Your capacitors will explode if your computer is badly
built and welded.
If you want to enjoy more use from your computer CRT, you can buy a reflector shield for various types of computers
to darken brightness.
Its like wearing sunglasses.
Or, you can just simply adjust the brightness control on your CRT settings.
When I clean my computer I use a cloth also.
I keep the dust off the air vents surrounding the unit(on the CRT).
So, its great to take all types of advice for first time
users, but, everyone has a different way of approaching this excercise.
Most of the info for inside cleaning, you click start, then click on the questions, about your computer which has all
advice and if none ask someone who does know.