Dually noted!
Although I'm not 80, 45 to be exact. And I've been in IT since I was about 23. And I've seen things change drastically.
My first computer was a Commodore 64 and I later get a 128 with a dual 5.25 inch floppy drive along with a cassette recorder data storage. Yes, we used to store data on regular old audio cassettes!
![Shocked :shock:](./images/smilies/icon_eek.gif)
Oh yeah and a blinding 300 baud modem!
The first medium sized mainframe I worked on was a Burroughs B1955. It had a pretty good foot print in a room. The more disk you added the more space you needed. Removable 14" disk pack. Where I worked had six on each system. And once you start adding all the required hardware around it the space started to vanish! And of course tape and main course of medium for backup. All together 4 6250bpi GCR tape drives. Dinosaurs in today's world! The mainframe(s) I work on today can vary in size from a file server up to a foot print of 2.5ft x 2.5ft.
I remember being introduced to DOS and Novell and then shortly after that came Windows for workgroups 3.1
And during this time the internet was in its infancy. I remember having a trial of compuserve and I loaded and view my very first website which was Web Crawler if I remember right. That was state of the art back then. I believe it was one of maybe three search tools for the WWW.
After that .. you couldn't keep up with everything. I remember getting my 33.6 buad modem, I thought I was IT! But then here comes the 56K modem. After this it's always been a game of catch up.