Unfamiliar: I do not use much technology at all and would need help just getting started
Competent (basic): I know how to do the basic things, but nothing too advanced. I'm not sure how it works or what exactly what it is doing, but I get by.
Comfortable (intermediate): I can use quite a number of different tools and packages and know how to manipulate files, images and other data. I am reasonably comfortable about using technology, do so routinely and am aware of how things work in general.
Confident (advanced): I am very familiar with these technologies and can resolve most problems or issues that I might face with the tools. I can help others, provide some training and solve problems.