If you know a non-technical person who needs some straight-forward advice about getting a new computer or tablet, send them to http://www.howtoreplaceyourpc.com/ .
The site’s recommendations are primarily intended to help home users avoid malware and security problems. There’s a good chance that one reason the old computer is being replaced is that it is infested with malware.
The site is run by Neil Hutton, whose day job is cleaning viruses off user’s machines. With this experience he unsurprisingly gives high marks for security to iOS and Macintosh, and Windows is in the “just put a target on your back” category.
No tech jargon here. This is a site you can send your mom to. Enjoy.