When most people look at the programs that run on computers all they see is a bunch of pretty images. There are a lot complex layers hiding underneath those graphics that they see. And just when you start to learn one layer there is another layer that is hiding right underneath that one and you have to see how it interacts with the layer you just became familiar with. So when you become a programmer there are a. lot of systems that you. have to learn to do your job right, says security-faqs.com.”]