I agree with DGraab - the Presto is great! I have one for Dad, and he gets a column from Andy Rooney once a weeks (historical ones, since Andy left us), and then any email sent to him prints out usually while he at a meal. The only drawback, is that there is no way to answer the emails. All you need is a regular phone line, and you can catch deals where the printer is either free or low cost - check Amazon. The monthly fee is quite reasonable.
Windows computers can be a bit daunting for non-computer people. I prefer Apple for the older generation - easier, less likelihood of a computer virus, and usually plug-n-play.
If you are thinking email and games, like mahjongg, solitaire, and such, you could probably use an iPad with either just wifi (if it's available in their home, or the cellphone/wifi iPad if you don't want to mess with wifi, and have a wireless keyboard to go with it. They are quite powerful and the touch screens are sometimes easier than using a mouse for hands that shake.
Hope this helps!