a. What type of phones can access the internet? b. In which year did the Swedish police use the first mobile phone? C. How were the 3G phones different from the 2G phones? d. Why are the 4G phones better than all previous generations of phones? e. What do you think is the meaning of the word 'amazing'? e
Answers
Answer:
1G, 2G, 3G, 4G and 5G represent the five generations of mobile networks where G stands for 'Generation' and the numbers 1, 2, 3, 4 and 5 represent the generation number. Since the early 1980s, we see a new generation of mobile networks almost every ten years.
Answer:
a.Smartphones, such as iPhones and Android phones, are basically small, handheld computers with built-in phones, GPS, and cameras. And like any other modern computer, they're tools for accessing the Internet.
b.The Swedish police used the first official mobile phone in 1946. The technology was connected to the telephone network and was distinctive of two way radio technology. The phone was not very practical as it could only make 6 phone calls before the car’s battery was drained.
c.The primary difference between 2G and 3G networks for mobile subscribers is that they get to enjoy faster Internet browsing and data downloading on 3G. On average, the speed of data transmission on a 2G network is only 170Kbps, while in 3G networks the downloading speed can go up to 42Mbps.