Computer configuration list from 20 years ago

How to identify whether a computer is new or old?

The condition of new and old products greatly affects the price of computers. Usually the newer the quality, the less time it has been used, and the higher the price. However, friends always ask me why there are many old model computers on the market that still look so new, just like new computers. Are they really brand new stock machines and prototypes as the merchants say?

In fact, as far as I know, most of the so-called low-configuration prototypes and stock machines currently on the market are refurbished computers. Driven by profit, it has become popular to take pictures of cucumbers and have a facelift. How to identify these computers that have been beautified? I will tell you about my many years of experience. I can’t say it is 100% accurate, but I can basically pick out those "mature ladies" who have been beautified.

1. The power of brand! Brand logos that can never be changed

The most common way to renovate a computer is to repaint the casing. Nowadays, painting technology is getting better and better, but no matter how advanced the painting technology is, it is difficult to deal with the logo on the top cover of the computer. , no matter which method is used, traces will be left here, and this has become one of the most effective ways to identify refurbished computers.

No LOGO

How to identify a refurbished computer through the top cover? First of all, IBM and major brand computers without logos on the top cover are basically refurbished computers. Because the logo part is too laborious to process, many JS developers who are not very skilled simply take off the logo and have a clean and neat look. Usually JS will also give an excuse of "there is no trademark in the first place". In fact, it is impossible for computers of these big brands not to have their logo on the top cover. The reason why the brand logo is gone is entirely due to the merchant's own manipulations. This phenomenon generally occurs on computers with metal casings.

You may ask after seeing this, can’t you put the logo on after spray painting? In fact, re-attachment of the logo is not as simple as you think. Because the strength of the merchant's own post-spray paint cannot be compared with the original factory spray paint, so even if the logo is glued to the post-spray paint surface, there is no guarantee that it will be secure and it may fall off if touched.

Some computer logos may be pressed on, or cannot be removed due to other reasons. In this case, JS usually uses the masking method to spray paint. The specific method is to cover the logo with transparent glue and then spray paint. After the spray painting is completed, peel off the transparent glue. However, the covering method has a big disadvantage, because the covering cannot just cover the logo, either more or less, so there will always be some traces left on the edge of the logo. In addition, because the old and new paint layers cannot be combined so well, if you look carefully, you will see two layers of paint. Even if you sand it before spraying, it will leave some traces near the logo.

2. Weaving baskets is all about closing the knots! The edge of the top cover that is difficult to deal with

There is a saying that "weaving baskets is all about closing the edges." In fact, the same is true for computer spray painting renovations. The more detailed the details, the easier it is for problems to occur and the harder it is to deal with them. Difficult, and the edge of the top cover is an out-and-out "closure". The front of the top cover is often made perfectly, but problems occur in small places like the edge and facade.

Paint peeling off edges

Original casings generally use the overall spraying process. The thickness, color, texture and even texture of the paint layer on the entire top cover surface are consistent, especially on the top cover. In corners such as the edge of the cover, the entire paint layer is very even. The top cover that has been renovated by JS is not like this. Because JS renovates all the paint by hand, it is difficult to ensure the uniformity of the paint layer, let alone the thickness and texture, especially at the edges, where the front side needs to be sprayed. When spraying the paint once, some will stick to it when spraying on the sides. As long as the technique is not particularly high, it will basically leave traces.

The traces left at this location can be divided into several types: accumulation, granular, uneven and textured. The buildup is caused by applying a second coat without waiting for the paint to dry. Particles are caused by the quality of the paint and improper control of the spray distance. Unevenness and texture are caused by the uneven thickness of the paint layer. These situations will never occur on brand-new computers, and even some domestic low-end products will not have such problems.

Spray paint accumulation

In addition, because the adhesion of the renovated paint is relatively small, especially on metal materials, the paint on the edge of the top cover is very easy to peel off. After using it for a period of time, the edge will Parts will begin to peel off, and even the former surface can be seen. You may wish to use your fingernails to feel the hardness of the paint layer when purchasing. If it feels soft, as if a piece can be detached at any time, then there is usually something wrong with the computer.

3. Traces of time! Check whether the keyboard is shiny

The keyboard is the most frequently used part of the computer. No matter how you protect the computer, as long as it is used frequently, the keyboard will inevitably become shiny. Because the letters on the keyboard are difficult to process, even with techniques such as re-sandblasting, it is difficult not to leave traces.

Oiled keyboard

To identify whether the keyboard has been processed, start with the letters on the keys. First of all, check whether the letters are clear. The so-called keyboard sandblasting technology is to spray a thin layer of paint on the keyboard keys. No matter how thin the paint layer is, it will inevitably cover the letters, so the sandblasted keys will cause the letters to be blurred and the letters will be blurred. There is a serious graininess to it. In addition to looking at the letters, you can also feel the key recognition points on J and F. This identification point is pressed out by the mold, and it is difficult to recreate it by hand.

However, I would like to remind you that the keyboard identification method is only a reference method. Many JS simply replace it with a new keyboard. If it is not identified by checking the serial number of the accessory, it will be difficult for ordinary consumers to distinguish.

4. The consequences of guiding the world! Look at the wear of the finger touch panel

With the improvement of renovation technology, there are more and more places that JS can renovate. However, there are ways to repair wear and tear in other places, but so far there is still no way to repair the wear and tear on the mouse touchpad. The mouse touchpad uses the resistance-capacitance principle to sense finger movement, so it cannot be painted or polished. If you want to refurbish it, you can only replace it with a new one, and this little thing is worth a lot of money, so there are very few JSs here. idea.

Someone has used software to test that the distance the mouse moves every day may be several kilometers, so the wear of the finger touch board is considerable. Even if the current finger touch board uses anti-wear materials, the hammer wear into embroidery needles. Generally, after half a year of use, you will find traces if you look at it sideways. After about a year of use, there will be wear and tear in some places. After two years of use, you can clearly see that the middle has been thinned. Some finger touch panels are of poor quality. There will also be phenomena such as insensitivity and random jumping.

5. The troubles caused by the increase in peripherals! Traces on various interfaces

As computer peripherals continue to increase, various computer interfaces are used more and more frequently. These interfaces will inevitably show some wear and tear after being used for a period of time, which has also become a One of the important ways we identify refurbished computers. When it comes to interfaces, it is actually not difficult to replace a brand new interface. As long as you can use a soldering iron, you can replace the interface. However, JS developers often ignore the interface and rarely do anything with this part.

Identifying second-hand refurbished computers through interfaces is not just about friction marks on contact points, because as long as USB and other interfaces have been used, they will leave traces. Even a brand-new machine cannot guarantee that there will be no traces. Identifying refurbished computers mainly depends on whether there is dust on the interface and whether there is wear on the edges. Because it is in a working environment for a long time, it is difficult to ensure that the interface does not get dusty. If the interface is dusty, it is definitely not a new notebook such as a library machine. In addition, the wear and tear on the edge of the interface is not caused by one or two uses. It must be plugged in at least hundreds of times.

As refurbishing technology continues to improve, refurbished computers are now increasingly difficult to distinguish. In fact, you may say that whether it is refurbished or not, isn't a new one better than an old one? In fact, you don't know that the reason why it is refurbished is because the previous condition may be very old, which means that the computer has been used for a long time. It's time. In addition, it is inevitable to disassemble and disassemble during the renovation process. A good book will be ruined after such a toss, and the stability and reliability of long-term use are difficult to guarantee.

If you encounter a refurbished laptop and like it very much, do not directly point out that the computer is refurbished, as this will usually make the dealer turn against you. You might as well use these places and dealers to cut prices. As long as the price is right, renovate it. Who told us to buy a second-hand computer?

What system was better to install win10 on a computer eight years ago?

If you want to install WINDOWS10 system on an old computer

The hardware must at least meet the requirements. For example, the running memory must be more than 8GB, and the Intel series CPU must be at least third or fourth generation. Otherwise, even if you install WINDOWS10 The system can run the system, open the task manager, and without running any programs, the CPU resources will occupy between 20% and 30%, and the memory will occupy more than 30% and 40%. Assuming that you are using 4GB of running memory. With such hardware conditions, even if a WINDOWS10 system is installed, running a webpage, opening a webpage video, or loading webpage content may cause the CPU resource usage to exceed 60% or even higher. Of course, this includes excessive memory resource usage, which affects the overall running speed. Possibility

Assuming that the computer from 5 to 6 years ago has high hardware resource configuration according to the configuration, then you can choose the home version of the WINDOWS10 system, or find different versions of the WINDOWS10 system streamlined version WINDOWS10 in System Home The system image file does not exceed 3.5g

During the use of the streamlined version of the WINDOWS10 system, some important system plug-ins may be missing and the runtime library may be missing, which may appear as an error when running the program or during game running. Crash in the middle

With the continuous updates of WINDOWS10 system, the requirements for hardware resources are getting higher and higher. The latest version of WINDOWS10 system recommends running memory of 16GB to 32GB