The PDP11S was from the 60s. The Intel 4004 was in 1974. The IBM PC XT with the 8088 processor and large 5-1/4” floppies was from the late ‘70s. The 3.5” hard cased floppies came after that.
Like I said my experience started with the IBM Pc and used the large floppies, and then the Tandy. Every machine after that I got one with dual drives so that I could continue to us all my floppies. So I had very few 3.5 disks.
After that we had computers with the hard CD type disks.
When I was in college, the computers filled a huge room, and you had to take a big stack of cards and run them through for one of the required classes. I can barely remember it. That was 1971.
To have a computer small enough to be on a desk was amazing to me. Look at all the smaller gadgets today. And this All in one desktop if pretty neat too. Nice big screen so my old eyes don’t have to squint to see the letters. LOL
I have lived in such interesting times and they continue. I wonder what the next decade will bring?