How do I know if I have the technical ability to use a content management system?

The rule of thumb that you should generally go by is this. (Which was actually taken from another Website, but summed up everything really well): If you have the technical know-how to construct an email with an attachment, create a formatted document with Microsoft Word, and navigate through a web site, you have the skills needed for content management. It really is that easy, provided you have the right content management software.