Don't be too quick to give up your Mac. Does it have I Photo on it? If you import your photos into your Mac with I photo it will show you wether or not the photo is in raw or jpeg by clicking on the photo and then hitting the information tab. You really need to study your manual. Beginners are better off shooting in jpeg until they have a better grasp of the basics. The onboard computer in your camera often does a very good job of editing photos for you. And there are settings you can make in your menus that can tweak those edits to some degree.