A family member of ours used to enjoy playing Harry Potter type games and things like solitaire on an old computer using win xp. After an illness they have been diagnosed with a form of Dementia, which in her case means that unless something is repeated, or is simple to understand, then it won't sink in or stay in. They still look after themselves and still knit and crochet. They have recently asked for a computer to play games again. So I'm considering an IPad or an X-Box. What would be the easiest for a person to use?