1. 1G network generation: They were solely operated by state-owned monopolies, competitions are limited and tariffs high.

2G network generation: A common standard (GSM) was adopted by many countries and later become 2G standard. The mobile phones become mass-market products as its price dropped. Due to the efforts that telecom companies made in technology, SMS and data service appeared．All of these created great value in this industry.

3G network generation: It opened new business opportunities such as virtual private network and WIMAX as shown in the right side graph. As a result, more subscribers were attracted and more revenue generated.

2. Nowadays the business is changing form good dominant business to service dominant. Business has evolved to a stage where the product as a good is not enough. Companies strive to change their way of thinking and try to develop new products as a service. Nokia is one of those companies, turning their business from a headset making company to an internet service company. However, In 2007 Apple introduced the iPhone. It is an internet based smartphone and with its unique features and friendly design the iPhone gave Nokia a serious rival.

In conclusion Nokia is taking a positive but risky path. Entering a market where they are not that well developed can be tricky. If they can start from lumber mill and finish as the biggest mobile phone seller, then there isn’t going to be something that can stop them realizing their ideas, success depends on how you define it.

3. One of the biggest problems the cell phone manufacturers have is the influx of PC makers who are starting to hone in with their own mobile applications. Laptops have become an integral part of the mobile broadband market. Acer, Google, Dell, Fujitsu, and Lenovo, among others, are working on ways to get into the market.
And following the runaway