I'm one of the older people here (I'm 75), so I can remember well before anybody (outside of maybe MIT) had computers or anything else digital. When I was a kid back in the 40s, phones were rotatry, everybody had party lines, and long distance was both expensive and time consuming because you always had to go through an operator. There was no direct distance dialing. Cameras were the old film kind so it was usually a week or more before you got your film developed and could see how your pictures turned out. There was no TV and radios were bulky with vacuum tubes. Transistors hadn't been invented. Lasers hadn't been invented. There were no satellites. TV came along in the late 40s with small black & white picture tubes, and they required constant tuning. There were no remotes. Cars were all manual shift, automatic transmissions didn't come along until the mid 50s as best as I recall. Everything was mechanical in cars, ignition used a coil and distributor, engines were fueled by carburetors (no fuel injectors). Stereo hadn't been invented, let alone surround sound. Music was on 78 RPM records, nobody had tape recorders outside of radio stations, and CDs hadn't been invented (neither had lasers). If you needed to find out about something you didn't know, you had to go find a bulky encyclopedia. The Internet hadn't been invented, let alone PCs and tablets.
I've always been very technically oriented, but there was no computer science curriculum in colleges in the late 50s, so I majored in math, taking as many numerical analysis courses as I could. After getting my masters degree in '63, I got a job as a scientific programmer in an aerospace company writing Fortran programs on (what else?) punched cards. Very few folks had disk drives, and when they came along, they were the size of a refrigerator and held only a few dozen MB.
The rest of my career was in the computer field, so to say technology has changed my life would be an extreme understatement. Now I have 4 desktops, a laptop, two tablets, two digital cameras, and a smart phone at home. Phone service is with my ISP (VOIP), and I can direct dial anywhere in the continental US at no charge.
Oh yes, physics and astronomy. Back in the 60s we thought electrons, protons, and neutrons made up everything. Now we know that even everything we know about ordinary matter comprises only around 5% of the universe. It was not until right recently did we learn that there were already hundreds of discovered planets in our galaxy.
Health care has changed incredibly. Antibiotics and thousands of new drugs, C-T scans, MRI scans, much less invasive surgical procedures, and sophisticated prosthetics just to name a few.