[FONT=Calibri]I am a dusty old timer that started off with Heathkit projects and then moved up to fabricating my own PCBs for S-100 bus 8080A computer. Tinkered with 8 inch Shugart drives and CPM on floppy disks, and acoustic 2400bps modems. Been in the working with or on computers from high school on.. First real PC was IBM serial number 0009, running IBM Basic on two 5 inch floppy drives. Dove into the deeper stuff hidden in machine code, and BIOS... neat little hooks to be found and shortcuts into the system for company projects. Yes, I've worked on mainframe computers, mostly IBM, coded COBOL,...