Filling up the skills section of resume with a bunch of skills that have absolutely nothing to do with the job you are applying for is basically just a waste of space.
I'm having trouble selecting exactly what to put in the computer skills section of my resume. I feel the need to list a lot of languages and the IDEs I work with, and perhaps mention that I use Mercurial too. But this seems, well, kinda fake; after all, where do I draw the line in the list of languages? Sure, I learned a little C in a class, I can conquer some simple printf and getchar projects, but I don't really think that counts as being able to list it on my resume.
Skills Section Of Resume | Resume Sample Template
And as we said before, REALLY dig into the job description to make sure you have a strong understanding of the skills that are required for the job, and make darn sure you put those skills in the skill section of your resume.