DNS Pi-hole

Block annoying ads Click image for more info Wow, I just got rid of much of the annoying ads you see on almost every website you open nowadays. I did that by having one of my Raspberry Pi’s do some extra work as a DNS sink-hole. Want to know how… Read the rest

IBM mainframe

The first computer I worked with professionally was the IBM System 370.  These were big boxes, the size of large refrigerators. I learned a lot in those days, about real storage, virtual storage, virtualization, machine code, S/370 assembler language, COBOL, file structures, etc, etc.  During this time, from the late 70’s… Read the rest