The 21st century is the century of information. It is particularly important to grasp effective information in a timely and rapid manner. Fortunately, with the development of science and technology, we accept information more easily. The methods are becoming more and more diverse. Surfing the Internet through a laptop is a way we often use to receive information. We are all familiar with laptop computers, especially students. Basically everyone has a laptop computer. But some people are unable to buy a brand new laptop due to limited purchasing power, so what should they do? Maybe a second-hand laptop is a good choice. Today I will introduce to you the price and affordability of second-hand laptops.
1. Price of second-hand laptops
Why choose second-hand laptops? There is no doubt that it is because second-hand laptops have a relatively low price, which makes second-hand laptops more cost-effective. We all know that for electronic products , as long as you buy it, it can be called second-hand, and second-hand electronic products drop in price very quickly. I believe everyone knows this. The same is true for laptops. Second-hand laptops are much cheaper than brand-new laptops. The price of second-hand laptops It's probably as follows:
Already purchased, but brand new and unopened. This is actually equivalent to a new laptop, except that it has been To start with, such a notebook is generally only about 200 yuan cheaper than the original price.
9.50% new. This kind of second-hand notebook is also very new. It has only been used for a short time, but the price drops quickly, usually at a 20% discount on the original price.
90% new. This kind of second-hand laptop has been used for a while. The appearance is relatively well-preserved and has some wear and tear. Generally, it is 30% off the original price.
90% new, if the quality is lower than 90% new, then the second-hand laptop will generally be cheaper, with the general price being about 1,500-2,000 yuan.
2. Second-hand laptops are enough to buy
Second-hand laptops There are many ways to buy computers, such as second-hand Taobao, you can also go to the second-hand market, and you can also buy second-hand laptops from acquaintances. When buying a second-hand laptop, you must pay attention to the performance, quality, and invoice of the laptop. It is best to check the machine in person, online shopping has certain risks, be sure to prevent being deceived
How to choose second-hand Notebook
Step One: Carefully identify and test the components of the notebook
Be wary of second-hand The despicable way of using a desktop CPU to replace a notebook CPU is to carefully check the CP of the notebook computer.U, hard disk, memory and other components, it is best to disassemble the machine and check it in person when purchasing. Most users will not notice CPUs with the same clock speed, but desktop CPUs and notebook CPUs are completely different. Due to the different heat levels, the heat emitted by the CPU cannot be dissipated in the notebook, causing system instability. . Therefore, try to request on-site inspection of the CPU during the purchase process.
Regarding memory, the memory of second-hand notebooks ranges from 32M to 256M. Try to choose one with a memory greater than 64M, preferably 128M or more. Please add enough memory at the time of purchase, because some laptops have special memory that has been discontinued and cannot be replaced. In addition, other internal devices such as graphics cards and sound cards should also be checked in person.
As for the hard disk, since it is impossible to understand the quality of the hard disk through visual observation, it can only be detected through software. The detection software can be DM, NORTON, etc., through DM, Scan NORTON, DM takes longer, NORTON takes shorter time. The scanning process must be smooth and uniform. If any cluster area takes too long, it means there must be a problem with that cluster area.
Step 2: Carefully observe and check the LCD screen
This point is very important. As we all know, the LCD screen is the most expensive component among laptop accessories, accounting for 20% to 35% of the cost of the entire machine, so you should pay special attention when purchasing:
1. Check whether the screen has any traces of damage, because when a machine with traces is used for a long time, the refraction of light will seriously damage people's vision. It is not worth it to accidentally move back a machine that affects vision.
2. Carefully observe the size and display effect of the display screen, and consider the display effect and size of the display screen in conjunction with the price. Of course, it can also be used to lower the price.
3. Identify the color of the display screen in detail. When observing colors, in addition to observing whether the screen is sixteen colors, 256 colors, or sixteen-bit true color, or 24-bit true color, you should also observe it diagonally above, below, left, and right. If you can accurately see the colors on the screen in any aspect, Only then can we judge that it is true color. Otherwise, if the color can only be discerned by looking directly in front of it, then it is falsely colored. You can get a high-priced and high-quality LCD monitor from a merchant and place it next to the notebook you want to buy, and compare their brightness, contrast, response speed, visibility and other parameters on the same interface.
4. Pay attention to the delay performance and brightness of the display. When choosing an LCD monitor, the most important thing should actually be its delay time. If the delay time is too long, your eyes will feel tired. At the same time, brightness is a weakness of LCD screens. The brightness of popular LCDs is generally 200cd/㎡ (lumen). Displays with a brightness lower than this are not advisable. Also, when looking at the brightness, don’t look at it alone, but adjust it in conjunction with the contrast. The brightness of some LCD monitors does not change no matter how you adjust it. As a result, when the contrast is increased, it becomes very dazzling and uncomfortable. In short, it should be comfortable and beautiful to the eyes.
5. Pay attention to the bad pixels of the LCD screen. The most common ones are white dots and black dots. You can use the following simple method to identify them when purchasing: Generally, the method of identifying black dots is to adjust the entire screen background to white, then the black dots generally cannot escape you. eyes; white dots are just the opposite. Adjust the screen background to black, and then the white dots will appear in their original shape! However, in addition to white dots and black dots, sometimes there are other color dots. At this time, consumers can create separate The screen background of the three primary colors of red, yellow and blue can be easily identified.
Step 3: Observe the outer casing of the notebook
Carefully Check the appearance to see if it has been disassembled or bumped, and if there are any cracks. If you find such problems, don't buy it no matter how cheap it is. But if there are only some minor scratches, you can consider it. This is because some small friction is inevitable due to the need for mobility. And buy second-hand pensThe thickness, size, and weight of a laptop should be considered. Compare it with second-hand laptops of the same type. Which one to choose depends on your actual needs. Step 4: Check the interface status of the second-hand laptop. It is very necessary to see whether there are complete interfaces. In today's laptop computers, with the popularization and application of external storage devices, the USB interface has become an essential device for both desktop and laptop computers. The USB port is a very important interface.
Therefore, it is best to buy a second-hand laptop with a USB interface. In addition, infrared transmitting and receiving functions are also an essential feature of modern notebooks. And when buying a second-hand laptop, an important purchase condition is to check its internal power supply. An external power supply is a must, and it is impossible to use it without a battery. Therefore, the main thing to look at when looking at the power supply is the quality of the battery, that is, how long the battery is used.
For second-hand goods, nickel-metal hydride batteries can generally be used for one hour within one to two years, and lithium-ion batteries can be used for two hours. This is the best Basic requirements, otherwise don't consider it.
Step 5: Check the status of peripherals
Check the keyboard, mouse, optical drive, and floppy drive , modem, etc. are available and easy to use. Last time I saw a second-hand laptop in the second-hand market. The keyboard was shiny and badly worn. If so, there was no need to buy it. Replacing the keyboard would cost hundreds of dollars. At the same time, open a word processing software and try to see whether every key on the keyboard is available and whether the mouse is flexible.
Whether the built-in floppy drive, optical drive, modem, etc. are available, please try them one by one. As long as they are devices in the computer, they cannot be missed!
Step 6: Try to get after-sales service from second-hand merchants
This should also be the last step. Remember to take back all the accessories of the notebook (battery, power cord, etc.). You also need the driver for the graphics card, sound card, and communication card, but most sellers say they don’t have it. It doesn’t matter if the driver really doesn’t exist. You can go to the laptop manufacturer’s website. Download the full set of device drivers for this model of computer.
Finally, a particularly important point is that second-hand laptops generally have a warranty (repair) period of two to three months. The dealer must guarantee the warranty. The (repair) period is written on the invoice, and during this period, the second-hand notebook is tested many times to try to find all hidden problems., otherwise after the warranty period, it will be troublesome to repair this type of computer, especially the hardware failure, and you must consider whether it is convenient for future repairs. If you can't buy accessories, you can't buy the machine even if it's cheap, because Due to the small internal space of laptops, shortage of parts, compatibility issues and other reasons, the possibility of laptop upgrades is almost zero.
Seeing this, I believe everyone is familiar with the price of second-hand laptops and their affordability. With a certain understanding, friends who have insufficient purchasing power and need a laptop can consider second-hand laptops. After all, they are very cost-effective. The above article mainly introduces to you the price and affordability of second-hand laptops. I hope it will be helpful to you.