Since we're telling grandparent stories, I'll add in two of mine.
My grandmother(mom's mother) passed away last summer at 85. She honestly never had that much of an occasion to use technology. I do remember her buying a CD at one point(probably 15 years ago), and being offended that all that was in the case was a "little record." She was getting ready to put it on her record player when my uncle caught her. She was adamant that "CDs are square." We did get her a Diskman-type CD player, and shortly after that she bought a new car that had a CD player. She embraced CDs with open arms after that

. She did eventually get a cell phone(after my aunt practically forced it on her) but rarely used it. I had it saved in my phone, but I don't think that my mom ever had it. Even going further back, in the early to mid 90s when home answering machines were becoming common, she absolutely positively refused to leave a message on ours.
My dad's father also passed away last summer at 93(about a month away from 94). Relatively speaking, he was current with technology. He bought a camcorder in the early 80s and used it A LOT-to the point where I think he wore out two. He was pretty seriously into photography around the same time, and gave me a pretty in-depth explanation about why he bought a Konica SLR(although I didn't agree with him-at the time I was buying Canons of the same age because that was all I could afford, and did make a conscientious decision to choose Canon). In later years, we brought him a computer and set him up with internet access. He got a real kick out of sending emails-at first to the point where it was almost annoying

- although in later years(past 90) he sort of gave up on it. I think the main reason was that arthritis in his hands made it hard to type. Even so, he played Freecell all the time on the computer. We also got him an iPad, which he used pretty enthusiastically. He never had a Smartphone(if they'd come along earlier in his life, he probably would have), but did go exclusively to a cell phone.