Dell is the No. 1 supplier of personal computers to business users, government agencies, educational institutions and consumer markets in the United States. The Dell XPS 27 is a well-balanced model in all respects, combining almost all high-performance hardware in one place, and has received a high score of 85 points in the US Consumer Reports, ranking first. The basic version of this machine is equipped with a 2.9GHz Core i5-4460s processor, 8GB of RAM, and a 1TB hard drive. The high-end version uses a Core i7 processor, GT 750M discrete graphics card, 8GB RAM, 2TB hard disk, and 32GB solid state drive, which can be called one of the fastest all-in-one computers. The machine also has everything in terms of hardware functionality, the original wireless keyboard and mouse are exquisitely crafted and comfortable to hold, and the built-in 802.11ac wireless network card, memory card reader, HDMI interface and 6 USB 3.0 ports can meet most use needs. The display resolution is 2560*1440, the display quality is very high, the color presentation is accurate, and the viewing angle is good enough, the only drawback is that the color is a little too saturated, and it is easy to produce glare. In addition, the XPS 27 is also an all-in-one touchscreen printer, which has a first-class tactile feel, making it more convenient and faster to use. The Dell XPS 27 is also rated by the review site Consumersearch as "the most comprehensive all-in-one computer", which is not the most perfect machine, but definitely the most comprehensive option. The price of Dell XPS 27 is about 13,000 yuan, but unfortunately, this is a product that was launched in 2014 and can only be purchased through offline channels at present. Other Dell all-in-one computers also take stable performance and comprehensive functions as their core competitiveness, and the price of the high-end model Inspiron 7000 series is about 8500-12000, and the configuration is slightly inferior to that of the XPS 27.