My job as a structures engineer, I use computers to do a lot of mathematical analysis and programming of routines extracting data for analysis.
In my spare time I am an enthusiastic user of computers and teach myself what I can. Although not an expert I would be able to become one if I had the training. I end up fixing a lot of errors for friends although I need help occasionally – which is why I have joined experts-exchange as friends are unable to assist.
Once I get a feel of what the questions are and gain more knowledge I may be able to offer help to other members as well.