I took this course a number of years ago. At the time I wasn't sure that these two profs know what they were talking about; especially, with the the focus on large-scale computers running proprietary operating and application software connected by proprietary networks. It finally all came together when our organization was hacked and much of data was stolen aand corrupted. Well, I finally get it. I just wish I could have taken more courses from them, they are diffinately ahead of their time. No more COTS software and public networks for us.