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Nov 18, 2024

What is the subnet mask

Subnet mask is also called network mask, address mask and subnet mask. It is used to indicate which bits of an IP address identify the subnet where the host is located and which bits identify the bit mask of the host. The subnet mask cannot exist alone. It must be used in combination with the IP address. The subnet mask has only one function, which is to divide an IP address into two parts: network address and host address. The subnet mask is the basic knowledge that everyone who uses the Internet must master. Only by mastering it can you truly understand the TCP/IP protocol settings. Let's explain what subnet mask is in simple terms.

Nov 17, 2024

What are vr virtual glasses? How is the effect?

3D stereo glasses is a penetrating LCD lens, through the circuit to the LCD glasses on, off the control, on can control the glasses lens all black, in order to cover a glance image; off can control the glasses lens for transparent, so that the other glance to see another glance should see the image.

Nov 16, 2024

What is the difference between the Guid format and MBR format for computer hard drive partitioning?

We often need to manually select a partition format partition for the hard drive, of which there are two formats, guid and mbr, and they are mainly the difference between the boot method and the supported partitions.

Nov 15, 2024

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.

Nov 14, 2024

airpods waterproof, how waterproof

AirPods are a line of wireless headphones produced by Apple and are widely popular. Although airpods are waterproof, they are not completely waterproof.

Nov 13, 2024

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.

Nov 12, 2024

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.

Nov 11, 2024

The difference between nfc and Bluetooth

Cell phone NFC and Bluetooth has now been very widely used, the principle is the radio transmission technology, but they have a fundamental difference.

Nov 10, 2024

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.

Nov 09, 2024

The difference between SLR and digital cameras

SLR digital cameras and we are more in contact with the ordinary consumer digital cameras are two completely different systems, the difference here is mainly reflected in the internal structure of the two.