BB machine to be introduced to China until the paging stations went bankrupt; the mobile phone started from the analog signal " big brother " to today's 5G technology has been introduced for 30 years. Will mobile phones be gradually eliminated?
BB machine is a product of the 80s and 90s, also called pager or pager. Its main function is to contact the BB machine owner through the paging station, so that the machine owner can quickly answer the call, because at that time, it was basically wired telephone Mainly, public telephones can be seen everywhere in the city. That is to say, the BB machine plays an intermediate role, the position is very awkward, and the function is very tasteless. Since
is so impractical, why does BB machine exist? It was because the mobile phone hadn't come out at the time, but there was a wired phone, and I couldn't get in touch with me when I went out often. What should I do? The pager solves the contact information of the wired phone when going out, which can also be regarded as solving the user's mobile communication needs. Later, the big brother appeared, but the expensive price of the big brother is not affordable by ordinary people, so there are still people With the use of pagers, the mobile phone era came immediately, and mobile phones from brands such as , Motorola, , and Nokia became popular! Completely solve the need to go out, call anytime, anywhere.
Originally mobile phones were in the analog era, only voice calls, and because it was a analog signal , the signal strength was very high, and the power consumption was also very large, so the initial mobile phone was called the big brother, like a brick. Then Big Brother was replaced by a digital mobile phone, the size of the mobile phone was reduced a lot, and because the digital signal can carry different information, there also appeared SMS and Internet functions. The mobile phones of this era are now called feature phones. Although the functions are limited, the functions of the mobile phone have been changed from a single call to more diversified.
The current mobile phone has surpassed the functions of the mobile phone itself. The mobile phone is equivalent to a TV, camera, video recorder, MP3, game console, that is, functions that everyone can think of can be realized on the mobile phone, not only that, even the current payment methods are fast Replaced by mobile phones. In the 1980s and 1990s, paper money transactions were basically the main thing. You still need to bring your bank card when you go out, but now? You only need to bring a mobile phone when you go out. There is a saying: "A mobile phone in your hand will last forever. If you don't have a mobile phone, you will have no soul." "The machine cannot be lost" should refer to the current attitude of everyone to mobile phones.
The mobile phone now uses a communication method based on electromagnetic waves , which is currently the best communication method for human beings. Of course, electromagnetic wave communication also has its shortcomings, such as severe attenuation and poor penetration. Is there a better way than this? Of course there are, such as neutrino communication (directly penetrating the earth, without satellite assistance), but it is still in the theoretical stage; quantum communication (over distance, not limited by the speed of light), is still being conceived; gravitational wave communication (almost no Attenuation, communication across the universe), humans have just discovered the existence of gravitational waves. They all have functions beyond electromagnetic waves, but it takes time to become the communication method . In the form of
mobile phones, there is currently no technology that can be completely replaced and popularized. From the beginning of its birth, the basic function of a mobile phone in a broad sense: making a call has not changed, but modern mobile phones have added many new functions. If we analyze the trend of BB machines being eliminated, it will take a long time for mobile phones to be eliminated.
