First: IBM ThinkPad series. This series of laptops, commonly known as "Little Black", has a fixed main color and style. As a big brand, IBM laptops have excellent quality, positioning and price. There are about 1,000 patented technologies in notebook-related fields. ThinkPad can be said to be a computer that pursues performance, portability and stability, and is also an excellent choice for enthusiasts. Second place: Apple MAC series. For this Mac, it is not made by Apple as we think. At its core it was different from the IBM standard PC. It can be said that he is an outsider in PC. In other words, Apple is equivalent to a streamlined IBM plus a streamlined Microsoft. Because it was only white at first, it was called "Xiaobai". If this IBM is the most practical and powerful notebook, then this Apple is equivalent to the most artistic and Mars notebook. Third place: Compaq, a subsidiary of Hewlett-Packard. This notebook brand was also a very mainstream machine at the time. Compaq can sometimes compete with IBM. Although it is currently owned by HP, it still uses the Compaq logo. It can be said that Compaq is actually synonymous with business notebooks. Needless to say, the quality and reputation of Compaq for home use are actually much worse than those for commercial use. Fourth place: Fujitsu. This Fujitsu is called "IBM" in Japan and is also the most popular brand among Japanese notebooks. Fifth place: Toshiba. In the case of this Toshiba laptop, it was the world's first true laptop. Over time, the notebooks of this brand are now taking a fashionable route, and the corresponding quality is a bit rough compared to Fujitsu.