Whats the difference between Advertising and Marketing?

What’s the difference between Advertising and Marketing?
When you think of advertising and marketing, you assume they are the same but they’re not. To market a product, you first have to find you’re demographic. You are going to find out the best possible approach to a potential customer. Marketing has to do a lot with do with finding the right crowd that can relate and afford the product. Some brands market preferably market to an age group. For example, McDonalds has the Big Mac. In their commercials, you don’t see a women eating there burgers because they know women tend more to watch the calories they consume. I think that’s why they started selling more healthy alternatives like selling salads and chicken sandwiches. To advertise is to basically promote a certain product to the masses with no real demographic. I don’t think they target a certain type of people, it’s just a campaign to let people know this product exists. “Marketing can occur even if an exchange doesn’t occur” (Mktg,page 4,lamb). What I got out of this was you have a product that’s being marketed and even if that person doesn’t decide to buy it, that person is a demographic of what type of people would probably be interested. If a grocery store noticed that a certain item was a top seller, they would probably set that item on an end cap. So I see the difference from advertising and marketing. I think finding the right demographic would be hardest because not everyone thinks the same way and everyone has their own preference. I believe if the product is good quality, you don’t need all this research for marketing. The good products will survive and the crappy ones will fail.