Internet era! How to prevent personal information leakage

With the advent of the information explosion era, as long as an inadvertent action may leak information.
read more

What is a discrete graphics card

Discrete graphics card refers to a graphics card that exists as an independent board and needs to be inserted into the corresponding interface on the motherboard. Discrete graphics card has independent video memory, does not occupy system memory, and is technically ahead of integrated graphics card, which can provide better display effect and operating performance. Discrete graphics cards are divided into built-in discrete graphics cards and external graphics cards. As an important part of the computer host, the graphics card is very important for those who like to play games and engage in professional graphic design. At present, the suppliers of graphics chips for civilian graphics cards mainly include AMD (formerly ATI) and nVIDIA.
read more

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.
read more

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.
read more

How to solve the problem of computer blue screen? What about the blue screen of the computer?

How to solve the problem of computer blue screen? First of all, find out the reasons for the blue screen of the computer. There are many reasons for the blue screen of the computer, such as the excessive overclocking of the computer, the poor contact of the memory module or the damage of the memory, the failure of the hard disk, the failure of the hard disk, and the non existence of the installed software. This article will introduce and analyze the causes and solutions of the blue screen phenomenon one by one.
read more

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.
read more

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.
read more

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.
read more

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.
read more

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.
read more