A nations power based on wealth is called is usually referred to as GDP, or "Gross Domestic Product" (if I'm understanding the question correctly. Although this isn't always a great indicator of the fundamental "health" of the country.<span />
There are several ways that digital cameras have changed since 1990. Some ways are that you no longer have to wait days to see your pictures, you can share pictures instantly, and you can take videos with your digital cameras.
citizen.
This is an example of a permanent resident, or PR.
