In the 90s and early 2000s I had to reboot my PC multiple times a day and reinstall the OS at least once a month. I remember freaking out when Windows 2000 went 30 days without a reboot. Computer's been a bit slow and wonky lately. Realized I had no idea how long it's been up, rebooted, fixed. No idea when I last rebooted my network stack.
Dead and dying hard drives were a constant hassle. My SSD has been through three PCs, without even reinstalling Windows. I just moved it, and it just worked. No idea how long I've been on this install, 8 years at least. I've got external USB drives in a faux-RAID array that have been cooking for 5 years, no problem. Everything burned electricity, got stupid hot, burned everything else out.
I was one of the original installers of cable internet. Couple of years later found me doing tech support. People were mystified at the concept of a website being down, yet their internet worked. Sites went down daily, even major ones.
We were constantly bombarded with viruses and malware. It was a nonstop fight to keep your machine clean. Now, I've only installed AV on company computers as a CYA thing since Windows Defender works great. (Also, as another security layer.)
I can pick up my phone and call anywhere in the US, free. Ever heard the words interlec or intralec? You needed a math degree to calculate long distance charges, so you'd just dial and pray it wasn't too bad. And pray the call went through. "We got a bad line! Call me back!"
A car with 100,000 miles was considered garbage. Power train warranties were 36K and that was astounding. Now they're 100K and more. My wife's car is a 2014 and my truck is a 2004. No one had 10-20 year old vehicles unless they were collectors or gear heads.
Shall I go on? :)