Encyclopedia - ITWorld-A top-tier website providing authoritative IT technical information.

Feb 09, 2026

How do Bluetooth headsets achieve noise cancellation?

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.

Feb 08, 2026

What is a digital showroom?

With the development of holographic projection technology, the introduction of multimedia interactive technology in the construction of corporate exhibition halls, focusing on intelligent multimedia interaction, immersive participation experience, and the visual sense of science and technology, the digital exhibition hall brings a novel sense of participation and interaction to people.

Feb 05, 2026

Who is more secure, fingerprint recognition or password?

Fingerprint, security, password, identification Nowadays fingerprint recognition technology is not a new technology, not only smart phones, even the door locks at home have also started to use fingerprint recognition technology.

Feb 03, 2026

What is resolution? What does resolution mean?

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.

Jan 29, 2026

What does the server mean

Many people may not know what the server means, but it must be familiar to computer enthusiasts. Generally, it is difficult for us to see the real server, because the server is generally placed at the key of the computer room, and the idle people are generally not allowed to enter. So speaking of the server, many friends who have not contacted with it feel very strange. Here is a detailed introduction to what the server means.

Jan 27, 2026

Wireless charging principle

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.

Jan 26, 2026

Which is better, laptop, desktop or all-in-one

With the subdivision of computer market products, today's computer market is blossoming everywhere. Now we will talk about the advantages and disadvantages of current DIY computers, brand computers, all-in-one computers, laptops and HTP computers

Jan 25, 2026

What is Chip?

A chip is a tiny circuit board made of semiconductor materials such as silicon on which a large number of electronic components, such as transistors, capacitors, resistors, etc., are integrated.

Jan 24, 2026

How does the camera work?

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

Jan 22, 2026

How is fingerprint recognition achieved?

As an advanced means of identity verification and access control, fingerprint recognition technology has been widely used in various fields with the advantages of uniqueness, convenience and high security.