Used to be a Linux guru with speciality on VoIP, but decided to start a computer museum in 2016 and doing that now. I can talk for hours about any of these subjects, but that happens when you are a museum director. However, I call myself a 'computer historian' and know of every computer or pieces of hardware in the HomeComputerMuseum the history of the manufacturer, the history of the particular type AND in most cases the story about the previous owner.