Hi John,
Nice to meet you, I also started very early in the CS field. I don't think I was ever part of the Y2K bug, but I do remember all of the systems I had to update because of it. The biggest magnetic media I can remember is the 8" floppy disks that held 16K, then the 5¼", that held a whopping 360K, until DSDD that help 1.2M, finally as you can remember the 3½ 720K, and 1.44M DSHD floppies came to existence.
My first computer was a TRS-80 Model 1, in 1979, such an amazing piece of equipment for the home, but I was 6, so.... yeah, good to meet you.