It's been a while, hasn't it? Well, I never bought the computer model I talked about here. I did buy one at Sam's Club, and paid more than I anticipated, but, I guess you get what you pay for. It's an HP Pavilion HPE with 12 GB memory, 2TB HDD, Intel Core i7, USB 3.0 ports - what I really wanted. It's OK - no real problems. Opening my very large "Favorites" folder takes longer, it seems, than it used to.
I haven't bought any dedicated backup software yet. "Ask Bob" recommends Acronis. When I finally, someday, get a NAS, maybe I'll get this. But I recently bought a new backup external HDD, a Seagate 3TB that I saw (again) in Sam's Club. It comes with its own dedicated software, and its default setup is continuous backing up; I'm using this option. I guess I should save a new Word file, and then immediately see if I can find it on the external drive to confirm that it's really working.