So they "update" software and eventaully I cannot use them

[question everything]

13. Precisely! The smaller screen 21.5"

down to the price of $1199. (Found the invoice).

I purchased it on April 2011 so, I suppose it makes sense that it is a mid-2010.

Thus, do I understand from your very generous guide, that if Sierra is still available, that I should be able to run Quicken 2007 on it?

One point, though, my iMac, is, of course, a desk computer with a full key board and a mouse.. Is the Sierra available on laptop or Mac Book?

Thank you so much, again