CDMA (Code Division Multiple Access) and GSM (Global System for Mobiles) are shorthand for the two major radio systems used in cell phones. Both acronyms tend to group together a bunch of technologies run by the same entities. In this story, I'll try to explain who uses which technology and what the real differences are.
Dairy. Dairy products provide nutrients that are critical for bone health, including calcium, potassium and vitamin D. Dairy is also a source of protein. The benefit dairy provides for bones makes consumption especially critical for growing children, whose bone mass is developing.
Milk, yogurt and cheese are all classified as dairy products on MyPlate, the United States Department of Agriculture's dietary guidelines. Products made from milk that retain their calcium content, whether the milk comes from cows, goats or other animals that produce milk, belong to the dairy family by the USDA classification. The USDA also classifies calcium-fortified soy milk as a dairy product, even though it's made from the soybean plant, not from animal milk. Foods made from milk that don't contain calcium are not classified as dairy products -- and thus don't belong to the milk, yogurt and cheese group. Dairy Products Milk is the most basic of dairy products.