Mobile phones will replace laptops and cameras in the future.
On April 1 day, China Mobile officially launched the TD-SCDMA social service test and trial commercial use in eight cities, and the "China standard" of the third generation mobile communication (3G) in China took the last step to truly enter the market. "The 3G era that has arrived has transformed mobile phones from communication tools into personal information service centers, and will gradually replace digital cameras, video cameras and eventually laptops in the future." Professor Yang Zhen, president of Nanjing University of Posts and Telecommunications, and Huang, deputy director of Fujian Fujitsu Information Software Company, made a prediction.
According to experts, 3G mobile phone refers to a new generation of mobile communication system that combines wireless communication with multimedia communication such as the Internet. Users can browse the web, send emails, shop, pay bills, buy tickets, play games online, or find the stores they want to go to through 3G mobile phones. As a result, mobile Internet access may replace computer Internet access and become the main Internet access mode in the future. In addition, many models of 3G mobile phones also have their own cameras, which allow users to make video calls or computer conferences with their mobile phones, and also make digital cameras and video cameras "redundant".
According to experts, the fourth generation mobile communication (4G) technology has also been put on the agenda, and its draft standard is being collected internationally. It is expected to be submitted to ITU for discussion within two years and enter the trial and testing stage. "Mobile phones are more popular than computers, more interactive than newspapers, more portable than televisions and richer than radios. One day, the fifth media centered on mobile phones will become the mainstream of future media. " Experts are full of confidence in this.
Triple play, watching TV, surfing the Internet and making phone calls.
Telephone lines, cable TV lines, network cables, many people will be dazzled by these cobweb-like lines when decorating their new houses. Professor Yang Zhen, president of Nanjing University of Posts and Telecommunications, and other experts attending the meeting said in an interview that with the development of telecommunications and information technology, these lines can be fixed in the future.
At present, there is a trend of triple play in the world, that is, the traditional telecom network, computer network and cable TV network, which were originally designed and operated independently, are tending to penetrate and merge with each other. Accordingly, three different types of businesses, markets and industries are also infiltrating and merging with each other, and the boundaries between the three major businesses and the three markets and industries are gradually blurring.
Yang Zhen told reporters that there are no technical barriers to triple play in China. However, due to "no legal basis", its development is greatly limited, which leads to the slow process of triple play, which hinders people from sharing the benefits brought by the digital revolution as soon as possible, and the very serious redundant construction also brings great waste. However, triple play is the inevitable trend of communication technology and business development. China should learn from the world's advanced experience, establish integrated communication control institutions, and actively promote the integration of the three networks, which is more conducive to the in-depth promotion of informatization.
It has become possible to surf the internet through wires.
In a building, all computers in the whole building can enjoy high-speed network at the same time by connecting a power line broadband modem through an ordinary power socket. Yang Zhen and other experts told reporters that this is not a fantasy, but a reality that has been realized in some countries. The subversive application of accessing the Internet through power lines will not only be "three networks in one", but also "four networks in one" in the future.
Power line access to the Internet uses power line as the transmission medium. Whether there is electricity on the line or not, it doesn't matter how many volts it is. As long as there is a line, the data stream can be transmitted. Because every household has ready-made wires, the distribution cost of users is very low, and the power lines are very competitive in access price, and the prospects are bright, especially in remote rural areas, where there may be no telecommunications network, but there is a power grid. Therefore, as a new carrier of telecommunication services, power line has attracted more and more attention. At present, the power line communication networks in the United States, Germany, Austria, Spain, France and other countries have started to operate, and many power companies are quietly conducting related experiments, striving to enter the telecom operation market one day. (Langrun School)