2.  Sends and receives radio signals › Making a call: Your voice is transmitted into a radio wave, sent out through your antenna and sent to a base antenna  Inside: Speaker, keyboard, microphone, display screen and circuit board › Connected to a wireless network

3.  Martin Cooper was the general manager of Motorola's Communications Systems Division. On April 3, 1973 in New York Martin made the first public mobile phone call.

4. Signifies first generation First generation cell phone standards 1G Second Generation Took cell phones from analog to digital 2G Third Generation More data-demanding ways (streaming videos) 3G Forth Generation Highest-Speed wireless service 4G

5.  1973- 9 inches, 2 ½ pounds, 30 circuit board  1998- 170 grams, GSM 900

6.  2007- 2.2 inches, 3.5 ounces, 10 MB internal  2009- 4.5 inches, 4.8 ounces, 256 MB