I've been in this industry for 23 years. A LOT has changed...but I expect I'll be in in for 20-25 more, so I occasionally freak out about how much I know that will be as irrelevant as what I learned in '95 was. (A lot carries over, but...so much doesn't).

Back then we had only physical servers (as a practical concern), Linux was considered risky to rely on, there was no social media, and everything on the web was expressed in highway metaphors and spoken of in capital letters ("The World Wide Web"). "Digital" was considered a fancy word, and to the average geek high speed access meant ISDN, while the average person was just starting to be able to imitate a 14400 baud modem connection sound. Wireless wasn't a thing (draft standard I think) and usenet was actually usable.