Pivot points are calculated using a formula. They can be used on any timeframe, but I think they work best on daily charts. They are calculated using the data from whatever chart you are using.
http://www.piptrader.com/forex_educa...ivot_point.asp
That kind of explains how Pivot Points are calculated. Most charting softwares will do it for you automatically and if it doesn't, you can find several free pivot point calculators on the web.
Support and resistance lines are areas where price has had a hard time getting through. The higher the time frame you go, the stronger the support or resistance. In my opinion, support and resistance areas are more reliable levels because they are used by more traders than pivot points.