Mode: 56K modem, maximum speed: 56kbps.
IDSN: maximum speed: 128kbs.
ADSL: 3-8mbsp downstream, 640- 1Mpbs upstream.
2 Mbps 100 Gigabit Ethernet per household * * *
2-10 Mbps per household in fttp * * *
The internal LAN is greater than 500Kbps.
It can be seen that, except for 56K modems and ISDN, general broadband networks can meet users' demand for video transmission. According to the bandwidth provided to users by different internet access methods, the quality of images transmitted by the camera can also be adjusted, such as resolution, true color level, image capture and transmission speed, etc. For example, when the bandwidth reaches 2Mbps, we can use the resolution of 640×480 to conduct video chat at 30 frames per second. At this time, both the picture quality and fluency are quite high, just like two people communicating face to face.
Cameras are developing in the direction of miniaturization and functionality, and more and more additional functions appear in camera products, such as Michelle Firedrill "Blue-eyed Genie" which can be used as mobile storage mentioned above, Amida's mesh display screen, Logitech's camera digital camera and so on. In addition, some manufacturers have made a big fuss about the appearance of cameras, and launched "Maruko" and "Gundam" cameras with pleasing designs, which are deeply loved by children and girls. With so many distinctive products and a perfect network environment, it is no wonder that cameras are so popular.
I like the Internet, perhaps because of its virtuality. Many words that can't be said in face-to-face chat can't be seen by the other person through the screen, so you can try to express them. Since the concept of video chat system came into being, I have never tried it and I don't want to try it. If you lose the mystery brought by the network, wouldn't it be better to communicate directly face to face?
Some netizens, and some friends in my life, sometimes open voice and video chat. I have no connection here, so I can see them, but they can't see me. This feeling is quite good. There are also many video chat software. There are more and more voice and video chat networks. Video chat network was very popular in 2005. Maybe everyone thinks it's boring to chat without knowing what the other person looks like. There are still many netizens who think it is more fun to talk and chat directly, because typing is more troublesome.
With the emergence of video chat rooms, it has also brought many negative effects. It is an eternal truth that there are good and evil where there are people. Unhealthy video chat appears almost at the same time as ordinary video chat. You can often see it on the internet. Engage in some chaotic activities under the banner of propaganda. What's more, some people with ulterior motives use the old technology that people can only use chat function after downloading and installing software, and try their best to get people to download the software they provide. However, it is actually a virus, which has a very bad influence. However, if something can last for a long time, it must be needed by others. It seems that to get rid of these unhealthy video chats, we must first correct the thoughts of those who need them.
I sincerely hope that the online world will become cleaner and cleaner. Although it is difficult, we must work hard for it!