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Apr 11, 2025

What are the advantages of full frame SLR camera

As we all know, using a camera to take pictures requires sensitive materials to record images. The sensitive material of traditional cameras is film, while the sensitive material of digital cameras is light sensitive elements (CCD or COMS). Compared with the area of 35mm film, if the size of the sensor area is close to or equal to that of 35mm film, it is a full frame size. The SLR camera with this size is a full frame SLR camera.

Apr 08, 2025

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.

Apr 06, 2025

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.

Apr 05, 2025

How to do when the mouse is not working

The mouse and keyboard, like, is to assist us in computer operation equipment, but compared to the desktop mouse, the laptop mouse seems to be more problems

Apr 04, 2025

How often should the router be turned off?

Router in the process of use, will produce a lot of junk files, we need to regularly clean up these cache, so as to improve the network speed, if not shut down for a long time as more and more of this junk, the operating speed will be reduced.

Apr 03, 2025

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.

Apr 02, 2025

Why does the phone turn off when the remaining battery is not zero

If you have ever encountered a situation where your phone automatically shuts down when there is still 20% battery left, the following possible explanations may answer your questions.

Apr 01, 2025

What is IMEI code

IMEI code, namely the serial number of the mobile phone. It is the abbreviation of International Mobile Equipment Identity. Like the identity card of a mobile phone, it is used to help identify the identity of a mobile phone. Each mobile phone has only one serial number, which is not the same. We usually match the serial number displayed after pressing the "* # 06 #" key on the mobile phone with the barcode on the mobile phone box and the serial number in the back of the mobile phone after removing the electric board. If the three are the same, it is more likely to be genuine goods (not excluding second-hand goods).

Mar 31, 2025

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.

Mar 24, 2025

What is the difference between power adapter and charger

The working principle of power adapter and charger is the same, both use the principle of AC power conversion to convert AC power into DC power to meet the power needs of the device.