I would like this thread to be comprehensive enough to cover all aspects of IT. I am an old man but when I asked in a place that was introduced to me as the Knowing room: I asked about MBR and GUI I put my question as clear as I could and was met with a blank face. Although they were young about 35ish they had no idea about hard drive variations. I found the answer on Google. I would like this site to try and help all aspects of computers and address IT please.