I started Purdue in "Computer Technology". As if COBOL was technology. 🤣 By Y2K I knew what was needed to fix the problems. PLUS my Profs., the military reservists at least, had been AWOL from Indiana for a good bit in 1999, mostly in Washington doing boffin shit.
I first heard of Y2K from RAdm. Grace Hopper (you know what she did even if you don't know what she did. See below.) She mentioned that new Super Computer Center on North Island NAF (in San Diego Bay) was "proofed against that bug" and then told me what "that bug" was. This was in the mid-80s. She also said she couldn't believe that COBOL was still a thing. I remember that when I got to Purdue.
Lt. Grace Hopper was charged with computing ballistics tables for the big USN guns, up to 16" in bore diameter. You can see pictures of her standing INSIDE her computer, manually reprogramming it (i.e. moving certain cables to certain connectors and running the numbers). BUT one day the numbers were wildly in variance with prior calculations. The team checked the programs, copacetic. Then they checked the physical plant. And they found a moth stuck between two contacts, preventing the circuit to close. SO she took the bug and taped it into the log book, below many frustrated/angry/confused entries. Then she added a note: "Found problem. Bug in computer." That log book is in the custody of the Smithsonian now, as documenting the first verified computer bug.