To those who are not initiated, computer science may seem like magic... And it really is, in a way, just not in the supernatural sense.<quoted text>
Um but it is not invisible... You are using it now...
It is not an "effect". It is something you SEE with your EYES. If it wasn't, how do you think you would be using your computer?
There is no "mysterious" and "invisible" force at work. Just a set of instructions to control an operation or interaction. Input and output; It is simple.
"Any sufficiently advanced technology is indistinguishable from magic." - Arthur C. Clarke