Homework, 10-4-2008

1. Why 2G is faster than 1G?
2G vs 1G

2. Why cellular is better than broadcast?
cellular vs broadcast

3. Describe a short history of development of cellular technology from 1G to 3G with a prediction of 4G and beyond.
History of cellular techonolgy

4. Read the article that discussed the future of mobile social networks.
ok.