Reading the true stories of mobile phones in modern literature and analyzing the answers.

Mobile phone, the scientific name of mobile phone, is a wireless communication mode spread by electromagnetic waves. British scientist Maxwell (183 1- 1879) summed up the previous experience, put forward his own ideas, established a set of equations named after him, predicted the existence of electromagnetic waves, and laid a theoretical foundation for the propagation of electromagnetic waves. Maxwell is the originator of wireless communication.

German scientist Hertz (1857- 1894) confirmed Maxwell's electromagnetic wave prediction with experiments. 1888, Hertz conducted a famous spark gap discharge experiment, which demonstrated the propagation of electromagnetic waves and measured that its speed was equal to the speed of light. Hertz laid the experimental foundation for wireless communication. In order to commemorate Hertz, the unit of electromagnetic wave frequency (vibration times per second) is named "Hertz". The frequency of electromagnetic waves emitted by mobile phones is in the range of gigahertz (109), which belongs to microwave frequency band. Hertz is the originator of wireless communication.

Italian scientist Marconi (1874-1937) read Hertz's article about electromagnetic wave experiment at the age of 20, which aroused his great interest and determined to devote himself to wireless communication. 1896, Marconi realized the wireless telegraph communication between 1.7 km, 1899, and realized the wireless telegraph communication across the English Channel of 5 1 km. 190 1 year, realizing transoceanic wireless telegraph communication. Marconi is the father of wireless communication.

The birthplace of mobile phone is Bell Laboratories, which belongs to AT*T, and its inventors are a group of scientists and engineers. "Walking around with one hand" was the dream of scientists and engineers at Bell Laboratories. The biggest obstacle to realize this dream is: insufficient frequency allocation. Although the microwave frequency band has dozens of gigahertz, it is only a few hundred megahertz after various applications, which is far from enough for mobile phone calls. What do we do? The idea of Bell Laboratories scientists is: the frequency of reuse by region. They imagine: dividing the territory of the United States into many hexagonal honeycomb communities, each covering dozens of square kilometers, and establishing base stations in them as buttons for mobile phone communication in this community. The electromagnetic wave emitted by the base station is limited in the area of the cell, so each cell can reuse the same frequency without causing interference. The communication between cells is handled centrally by the base station, the caller roams in the cell, and the neighboring base stations switch at the junction of their coverage areas. Mobile communication was born, and the dream of "one mobile phone in one hand and traveling everywhere" came true.

When it comes to mobile phones, you can't help but mention Motolola in the United States. In the early 1990s, Motorola's mobile phone marketing was a global leader. Not only that, Motorola's management model is regarded as a model by American business circles and called "the best company". During the period of 1992- 1993, I interviewed Motorola's headquarters in the suburbs of Chicago three times to help its Academia Sinica explore the possibility of using HTS electronic technology to improve the performance of base stations. Although the experiment was successful, it was not adopted. At that time, I had a vague hunch that the title of "best company" would not last long if new technology was not adopted. Sure enough, the problem is not the base station, but the mobile phone. In the mid-1990s, the development trend of mobile phones is to adopt digital technology, which has obvious advantages over the original analog technology. Many companies have actually launched digital mobile phones to seize the opportunity. Motorola saw that its products were unsalable and the market was eroded by competitors, but it did not move. The reason is that a technical director who has contributed to the research and development of analog technology is obsessed with his own technology and stubbornly adopts digital technology. The director was finally dismissed, which led to the launch of digital mobile phones, but it was too late and Motorola was seriously hurt.

The widespread popularity of mobile phones has formed a "mobile phone culture".

Mobile phones make communication between people more convenient and expand personal freedom. Reflected in interpersonal relationships and social activities, there are subtle changes. The film "Mobile Phone" successfully described this change by artistic means, and won three Hundred Flowers Award prizes this year. The number of mobile phone short messages sent has exceeded 200 billion, which has added a convenient new form for interpersonal communication and bred "mobile phone literature", including poems, essays and novels. The New York Times recently made a special report on the emerging mobile phone novels in China.

The characteristics of mobile phone literature can be summarized as: fast, wide, short, new and interesting. Spreading at the speed of light, its speed and scope are beyond the reach of traditional literature. The number of words a mobile phone screen can hold is limited. Shortness is the most important feature of mobile phone literature. Modern people are very busy and short hair is very popular. If you want to be brief and express your ideas, you have to be concise. If you only talk about the business of things, the content will naturally be novel; Short and interesting to attract readers. It is novel and interesting, especially for young people. Mobile phone literature has just started and has a long way to go.

Mobile phones can be used to download and play music. Why can't mobile phone users compose and transmit their own music? Mobile phones will become personalized audio art media.

The mobile phone screen has more than one million pixels, which can transmit clear images. Photography mobile phones are already selling well, and mobile phones as a medium of various visual arts are just around the corner.

What are the prospects? There are many possibilities for the development of mobile phones. First, popularizing 3G is a top priority. The functions and information transmission rate of 3G mobile phones far exceed those of existing mobile phones. It can bring more convenience to users. Secondly, mobile phones and computers will be combined into one. The heart of the computer is the central processing unit, and its size has been reduced to fit the mobile phone. The difficulty lies in its excessive power consumption and heat dissipation. If this difficulty can be overcome, the mobile phone with computer function will become a veritable treasure in the palm of your hand.

How will the mobile phone culture develop? It's too early to say. But it seems that personalization is a possible trend.

—— Excerpted from Liberation Daily, June 5438+1October 65438+May, 2005, with abridgement.

1. What does this article introduce about mobile phones? Please summarize it briefly. (4 points)

Motorola is mentioned in the fifth paragraph of this article. What is the intention of this writing? (5 points)

Some people say that the genre of this article is biography, while others think it is popular science. Please tell me your opinions and reasons. (6 points)

Answer:

1. This paper introduces the history of mobile phone research and development, the life changes brought by mobile phones in interpersonal communication and social activities, the characteristics of mobile phone literature and mobile phone culture, and the development trend of mobile phones. (4 points)

2.① The material selection is typical. Motorola is an outstanding representative of the mobile phone industry, and its development history is epochal and representative.

② The content conforms to the main idea of this paper. The development history of Motorola mobile phone shows that the future development trend of mobile phone should focus on innovation and practical application.

3. Examples of answers:

(1) popular science. This article is an explanatory article introducing mobile phone technology products. This paper accurately tells the relevant knowledge and information in the history of mobile phone development, and predicts the future development trend and direction of mobile phone. (3) This paper tells the history and trend of mobile phone development in plain language, such as pointing out the development trend of mobile phone culture at the end, and using the word "possible" is to judge the trend, which reflects the rigor of the language. (The answer is 6 points. Give 2 points for answering "popular science",

Reasonable analysis accounts for 4 points)

(2) biography. (1) Get off the topic and get to the point. Mobile phone is a representative product of today's economic life and information society. ② This paper selects real and typical cases in the history of mobile phone development, such as the rise and fall history of Motorola. (This answer only gives 3 points. Answer "Biography" to 1, reasoning analysis to 2) Answer analysis: 1. The focus of this problem is to analyze, synthesize and integrate information.

1. This question mainly analyzes the writing of the article.

1. This topic mainly discusses the doubts and difficulties of the article. Pay attention to exploration and evaluation.