Oh, I just figured out the Universal Access on the Mac. To zoom in hold down the Apple Key, Option Key and press =+ Key. To zoom out press and hold the Apple Key, Option Key and press -_ Key. That easy.
If you want to see all the options or configure the settings, goto the Apple logo in the upper left corner and click, then in the drop down menu click “System Preferences”. A new window should appear with a bunch of icons, click on “Universal Access” then check the “Enable access for assistive devices”
And for a little Windows comparrison. You can use the Accessiblity Options little magnification of a line of text, inadequate according to my visually imaired sister. Or you could purchase ZoomText for the low sale price of $509.