Joke Collection Website - Public benefit messages - What's the difference between the ancient method of transmitting information and the present method of transmitting information?
What's the difference between the ancient method of transmitting information and the present method of transmitting information?
Modern methods of transmitting information: 1. Wired communication transmission: such as telephone, fax, telegram, etc. 2. Wireless communication transmission: such as mobile phones, walkie-talkies, radios, televisions, etc. 3. Network communication transmission: such as email, video, QQ chat, etc. 4. Paper communication: such as letters, newspapers, books, etc.
Ancient people and modern people used different methods to transmit information. Ancient people were slow and inefficient in transmitting information, and sometimes they made mistakes. Modern people transmit information at a high speed and efficiency, with a lot of information and wide sources.
Communication is a process of human practice. With the development of social productive forces, the requirements for transmitting information are constantly improving, which makes human civilization progress continuously. Among all kinds of communication modes, the communication mode that uses "electricity" to transmit information is called telecommunications. This kind of communication is fast, accurate and reliable, and it is almost not limited by time, place, space and distance, so it has been developed rapidly and widely used. At present, due to the rapidity of radio waves, the physical communication combining cultural exchange with real economy in the process of ancient material exchange is understood by human beings as an obstacle to economic development.
Ancient beacon towers, drums and semaphores, modern relay stations, homing pigeons, postal communication, etc. , mainly transmitting visual sound. In ancient times, it took several days for long-distance communication, while in modern times, it often focuses on instant communication by telecommunication means, such as telegraph, telephone, express mail, short message and email. As a natural science, postal communication can better reflect the harmony and communication between man and nature. However, in today's period of paying attention to economic interests, the relationship between man and nature is often ignored, which makes postal communication relatively unacceptable.
In ancient times, people passed information by tying knots, posting posts, flying pigeons passing books, fire alarms, symbols, body language, eyes and touching. Today, with the rapid development of modern science, various communication modes such as broadcasting, fixed telephone, mobile telephone, Internet and even videophone have appeared one after another. Communication technology has narrowed the distance between people, improved the efficiency of economy, and profoundly changed the lifestyle and social level of human beings.
In the physical age, information is transmitted through the combination of body, eyes, gestures and natural media such as rocks and trees.
Walking upright in the spoken language era increased the demand for information transmission, thus giving birth to language.
In the era of writing, with the development of productive forces, human beings have the demand for information recording, and writing is produced.
1044 printing era, Bi Sheng invented movable type printing. 1450, the Germanic Gutenberg invented metal movable type printing.
1837, American Morse invented the telegraph.
1857, transatlantic submarine telegraph cable completed.
1875, Bell invented the first telephone in history.
1895, Russian popov and Italian Marconi developed radio receivers at the same time.
1895, French Lumiere brothers premiered their first film in Paris.
19 12 years, in the sinking of the Titanic, radio saved more than 700 lives.
1920s, radio came out.
/kloc-in the 1920s, British Baird successfully transmitted TV pictures and was known as the inventor of TV.
When World War II broke out, the television industry was interrupted, and the war highlighted the characteristics of low cost and easy reception of broadcasting, and the audience increased again.
1962, the United States launched the first communication satellite, which opened the era of TV satellite transmission.
1955, the United States issued the first military electronic computer to meet the needs of the war.
1969, the us military established the ARPANET to prevent communication from being interrupted when attacked.
1983, the U.S. Department of Defense divided ARPANET into military network and civilian network, and gradually expanded into today's Internet.
1993, the United States announced plans to build an information superhighway to integrate computer, telephone and television media.
Some people regard the characteristics of computer and network technology-digitalization, networking, multimedia, intelligence and virtualization-as the characteristics of information technology. We believe that the characteristics of information technology should be understood from the following two aspects:
Information technology has the general feature of technology-technicality. Specific performance is: scientific methods, advanced tools and equipment, skilled skills, rich experience, rapid action process, efficient functions and so on.
Information technology is different from other technologies-information. Specifically, the service subject of information technology is information, and its core function is to improve the efficiency and benefit of information processing and utilization. The nature of information determines that information technology also has the characteristics of universality, objectivity, relativity, dynamics, enjoyment and transformation.
- Previous article:Is it a returnee from a low-risk provincial capital to a low-risk county across provinces?
- Next article:How does iphone forward SMS?
- Related articles
- Wenzhou Lucheng District Epidemic Prevention Center Tel
- How to cancel the online short message service of rural credit cooperatives
- How to check the balance of the old-age medical insurance card after retirement?
- How many days will it take to receive the card after successfully applying for a Ping An Bank credit card?
- What do you mean by receiving enhanced information from Huawei?
- The mobile phone is set to intercept high-frequency phone short messages.
- How to pay back the student loan?
- How does Unicom open purple diamonds by SMS?
- I'm breaking up with my boyfriend soon. Should I send him a message? What message should I send to my boyfriend after breaking up?
- How does itools import SMS into Apple's mobile phone?