Switch, meaning "switch", is a network device used for electrical (optical) signal forwarding.

After paying attention to the Wi-Fi signal strength you also need to pay attention to the Wi-Fi security level, which can help prevent information loss and even prevent scraping behavior.

The mobile network has become a part of our daily life. Mobile phones can't leave the mobile network without sending WeChat messages to watch live games. However, many users will find that some mobile phones need to cache and play games when watching live broadcasts, but some mobile phones do not. Even if you use the same operator's network, the transmission speed of the mobile phone network will vary greatly at the same time and place. What? This may be because your phone does not support carrier aggregation. What is carrier aggregation? Next, we will introduce the carrier aggregation technology and the application of high pass carrier aggregation technology in detail.

The bootloader is a small program that runs before the operating system kernel runs

Fear of oversleeping at work, or fear of missing a date with friends, we will habitually set an alarm clock on the phone every few minutes. The list of alarms is not enough to fill the screen, so you can't sleep with peace of mind.

This word is believed that as long as you are familiar with the digital field, you will not be unfamiliar with it. Resolution is the precision of screen image, which refers to the number of pixels displayed by the display. Since the dots, lines and surfaces on the screen are all composed of pixels, the more pixels the display can display, the finer the picture will be, and the more information can be displayed in the same screen area, so the resolution is one of the very important performance indicators. The whole image can be thought of as a large chessboard, and the resolution is expressed by the number of intersection points of all longitude and latitude lines.

Machine vision technology aims to simulate and emulate the human visual system through algorithms and models that enable computers to "see" and understand information in images or videos.

The working principle of the camera can be divided into four key steps: optical imaging, electrical signal conversion, digital signal processing and image output.

Bluetooth headset is one of the indispensable audio devices in our daily life, in order to provide a better audio experience, Bluetooth headset gradually adopted the noise reduction technology, so that users can quietly enjoy the pure world of music.

The principle of wireless charging is through near-field induction, the wireless charging device conducts energy to the charging terminal device, and then the terminal device converts the received energy into electrical energy and stores it in the device's battery.