How to describe computer skills in an application form? (Master's degree) In a part of the application form I was asked to describe my computer skills. How should I do this? Is mentioning them as a list (bullet points) enough, or should I be more detailed?

I'm talking about professional skills (e.g. programming languages)So should I, for example, list all the programming languages I know, or should I give detailed information (for instance, the duration I have been working with each language)?
Computer skills can be divided into several area such as Basic Skills (Windows, Office), Business skills (Mail, Internet, Communication) to more professional skills Programming, Administration, Database, Network, Consulting, but these are really big areas. There is also Academic Computer Skills where should be software regarded to academic world (Latex, Open Source....) 

It is a really wide field, so maybe you should give more specific information about study programme for more information.