Moi, that was due to the fact that most computers had a date code that only went to 99 for the year and nobody knew what would happen when it went over, would it work, would it barf all over its self. I remember it well I had to go in and check my system to make sure everything calculated correctly and the dates rolled correct. The only bright side of that experience was that the directors (the big big bosses) where there all night I only was there for a couple hours.
I have a Brother Notebook/Word Processor made back in the mid 1990's. If you squint, it kinda looks like a laptop.
It was my computer substitute for back when I couldn't afford a computer. It has a large monochrome screen. It isn't that heavy, is battery powered, and I could carry it around with me to do my writing. With a modem attachment, I could actually get on the internet. (Text based websites only.) I wrote my very first story for the EA on it. I still have it, and I still fool around with it from time to time.
When I turn it on nowadays, it always asks me for the date. It simply cannot fathom any dates past 12.31.1999
Instead I have to tell it it is 1990 or thereabouts. If I try and put in the real date, it has a little meltdown, shuts down, restarts, and asks me the date again. Whenever I use it, it feels like I am transported back in time to my early twenties. It's sort of nostalgic.
On the plus side, it is completely immune from ever getting a computer virus.