My Grandfather is one of those 11%. However I suspect he's a bit different from the others. Up until the late 90s he was programming Fortran and COBOL. He started during the Korean War or just after I believe. Towards the end he was mostly doing contract work as one of the few people who could still work on them. But after he retired technology stopped for him. The latest innovation he'll use is a DVD player. The only reason he doesn't have a tube TV is it died five years ago and we got him a flat screen.
To be fair he may never have gotten used to using a GUI on a PC or the internet at large. But still, it's my grandmother who runs their email account and shared cellphone.
I think your grandfather and I are kindred spirits.
When I retire, I don't plan to ever use a computer again if I don't have to. There's nothing on the internet that can compete with the fulfillment available from my wife, my dog, and my actual real life friends.
Yeah, what was that, really? Typing QBASIC programs from paper into the computer? Using it as a fancy typewriter? Calculating ballistic trajectories? That's all I can remember.
I'd write an enormous list here, but it's probably easier and more educational for you to go to archive.org and look at the software ads in pretty much any issue of Byte magazine before 1990.
My father is like that, although not as extreme. He was also a professional Fortan programmer. I showed him Visual Basic 6 when he retired in the mid-90s and he's still using it today for all his programming projects. He uses email and will websurf some, but has no interest in a cell phone or anything else invented in the last 15 years or so.
Oh, but he really wants a Tesla. He's in his mid-80s. :)
To be fair he may never have gotten used to using a GUI on a PC or the internet at large. But still, it's my grandmother who runs their email account and shared cellphone.