Hello Gramma! welcome and hope you like it here.
I think its really cool to see people of your generation making use of technology that we otherwise take for granted these days.
Im only in my late 40's but even to me its interesting to see all the changes since growing up with Star Wars, Star Trek, Lincoln Logs, Erector Sets and Chemistry kits too many things to mention that I have spent numerous hours on myself.
To now have things like iPhones and iPads and various other techno geek gadgets just makes my world, but a good book is always welcome too.
I can only imagine how things have looked to progress to you but from your interest, it appears as you feel quite comfortable with it, thats just awesome!