I spent the first ten or so years of my career living in data centers. I was a network guy... built a lot of servers... installed a lot of operating systems. Before I made the jump into project management, my specialty was email systems... Lotus Notes in particular. The first couple of projects I ever officially managed were things like server upgrades and hardware refreshes. Sometimes we were doing upgrades just to stay current with the latest release... but most of the time, our stakeholders were investing money to get some new capability that was valuable to the business.