The Palmia Computer Club Presents Cell Phones And GPS Presented By: Jerry Moore (email@example.com)
AUDIENCE SURVEY • How many people own a cell phone? • How many people who don’t own a cell phone want one? • How many people are happy with the cell phone they currently have? • Do you want more features? • Do you want less features? • Is the monthly fee you pay reasonable? • Are you happy with your current cell phone carrier? • Do you have a hand held or in car GPS navigation unit? • Are you considering a GPS purchase?
Cell Phone Facts And Issues To Consider • Fifteen years ago cell phones were a rarity • Cell phone annual business has grown from $3,000,000 to $30,000,000,000 • Lobbyists still dominate the USA cell phone market and stifle competition • The European Union has a much broader choice of phones • Text messaging is a cash cow for the carriers • The market caters to and is dominated by younger buyers • Beware of long contracts and the fine print • Since the release of the iPhone, new technology has advanced at an exponential rate • Understand that whatever you buy will be obsolete within a year
The Global Positioning System (GPS) is a satellite-based navigation system made up of a network of 24 satellites placed into orbit by the U.S. Department of Defense. GPS was originally intended for military applications, but in the 1980s, the government made the system available for civilian use. GPS works in any weather conditions, anywhere in the world, 24 hours a day. There are no subscription fees or setup charges to use GPS. GPS satellites circle the earth twice a day in a very precise orbit and transmit signal information to earth. GPS receivers take this information and use triangulation to calculate the user's exact location. Essentially, the GPS receiver compares the time a signal was transmitted by a satellite with the time it was received. The time difference tells the GPS receiver how far away the satellite is. Now, with distance measurements from a few more satellites, the receiver can determine the user's position and display it on the unit's electronic map.