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.

The hosts file is a file responsible for IP address and domain name express resolution in Windows system and is saved in ASCLL format.

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.

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.

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