When choosing a computer, we should mainly consider the following aspects:
Reference article: 2020-6 A notebook computer with a size of about 4,000 is recommended to students! ! ! Don't look at regret!
1, CPU: All computer operations are controlled by CPU, and the performance index of CPU directly determines the performance index of microcomputer system. At present, the mainstream of the market is Pentium, Core i3 and i5.
2. Display screen: LCD is the most expensive part of notebook computer. The mainstream screen size is 14. 1 inch, and there are also 15 inch. If users travel frequently, it is recommended to choose some ultra-thin and ultra-light notebooks with screen size of 12 inch ~ 13 inch. If the user is sitting in an office, he might as well choose a bigger one, which looks more comfortable.
3. Memory: used to temporarily store the operation data in CPU and the data exchanged with external memory such as hard disk. All programs in a computer run in memory, so the performance of memory has a great influence on the computer. At present, the mainstream of the market is 2G/4G and 8G memory.
4. Hard disk capacity: As the data storage of computer system, capacity is the most important parameter of hard disk, mainly considering the capacity and speed of hard disk. The mainstream in the market is 500 and 1T capacity, 5400 and 7200 speed.
5, optical drive: DVD-RW(DVD burning) is popular at present. From the point of view of use and economy. Pay attention to the stability, sound, error correction ability and speed of the CD-ROM drive.
6. Battery and power adapter: Try to buy lithium batteries. For the power adapter, it should be noted that if the temperature is too high after working for a long time, it will be abnormal.
7. Extensibility: We should give full consideration to the expandability and upgradeability of products. The most commonly used USB interfaces, many of which are easy to use, can easily connect digital cameras, scanners, mice and other peripherals.
8. Is the operating system pre-installed? If there is no pre-installed operating system, it is called "bare metal". This has certain influence on the stability of the system.
9, brand: it is best not to buy only cheap laptops, or high specifications. Brand protection is meaningful at the time of purchase, because companies with good brand image usually invest a lot in technology and maintenance services, which is reflected in the price of products. In addition, the collocation, documents and accessories in the software and overall application. And be more careful.
When asking about the price, we should also pay attention to the contents of warranty and future upgrade services. Especially in terms of warranty service, some companies provide one-year warranty service and some companies provide three-year warranty service; Some companies have quick maintenance centers, while others don't. Whether maintenance and replacement parts are charged during the warranty period varies from brand to brand.