Dear Heloise: As for uploading photos to your computer, I would also suggest making sure you have an online backup of all your computer files. A fire or flood can destroy your computer and any backup device you keep in your home. And it might also destroy the original photos which are stored at home.
When it comes to worrying about outdated technology, there will always be a way to update the files. You can still buy floppy to USB drive converters, and floppy disks haven’t been used for decades. I recently downloaded 3000 slides to my computer. I found that after 60 years some faded a lot; this is also true for color prints. Downloading them also makes it easier to share photos with grandchildren and others who no longer live nearby.