if I remember correctly my first PC had the bigger DIN connector for the keyboard and a DSUB9 for the mouse. Guess I’m old ;)

Same. I remember needing converters for these newfangled PS/2 connectors. Then again, I am old enough that I remember why floppies were called floppies, and used tape for more than just backup. And hard drives being as big as a shoe box and with less storage than you now have as CPU caches.

Was the tape to cover the write protect notch on the floppy?