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Screen article 1: What do you mean by bright spots, dark spots and bad spots? A: The bright spot is what we commonly call the stain, and the black spot is the black spot that appears when the screen is completely white. Bad spots include bright spots and dark spots. The bad spot was produced in the LCD manufacturing process and cannot be repaired. The national standard for LCD defects is very low, and all defects of 12 are qualified. 2. What is the perspective? A: The viewing angle determines the user's viewing range and perfect angle. If it is too small, the user will slightly deviate from the front of the screen and the picture will be eclipsed. General users can use the viewing angle of 120 degrees as the selection criteria. 3. What is the approximate response time of the notebook LCD screen? A: Generally speaking, the shorter the response time, the better. The shorter the response time, you won't feel "smear" when watching high-speed moving pictures. According to the reaction time of human eyes, if the reaction time exceeds 40ms, there will be hysteresis of moving images. At present, the response time of LCD screen used by most notebooks is about 25 ~ 30 ms.4. Is the brightness of notebook LCD enough? Answer: At present, the brightness of ordinary notebook LCD screen is about 150 lumens, which is enough for daily application. The brightness of the highlighted LCD screen is 250 lumens, while the brightness of NEC LCD screen with WSSV technology is as high as 320 lumens. 5. What problems should I pay attention to when using LCD screen? Answer: LCD screen is a very fragile component. If the hardness of the top cover is not enough, be careful not to let heavy objects press on it. Be careful not to scratch the surface of the LCD screen, and it is best to stick a protective film; When the notebook is idle, it is best to turn off the LCD screen to prolong its service life. Weight 1: What is the weight of the fuselage? Answer: The weight of the notebook excluding the battery and power adapter is also called bare metal weight. 2. What is the travel weight? Answer: The sum of fuselage weight, battery weight and power adapter weight. If it is an external drive model, the weight of the optical drive is not included. 3: What is the weight of the battery? What about the power adapter? A: The weight of the battery is related to the number of batteries. The weight of 3-cell battery is about 0.2Kg, 6-cell battery is 0.3-0.4kg, 12-cell battery is 0.6Kg, and the power adapter is generally 0.4-0.5kg. 4: What is the weight of the suitcase? Answer: In order to be more portable, the detachable CD-ROM drive can be replaced by a suitcase, and the weight can be reduced by about 0.4Kg. Battery 1: What do you usually mean by 3-cell and 6-cell batteries? Is it related to battery capacity? Answer: 3-cell and 6-cell refer to the number of cells in the battery. The more batteries, the greater the battery capacity and the longer the service life. 2: What are the types of batteries for notebooks? A: There are mainly nickel-chromium batteries, nickel-hydrogen batteries and lithium batteries, which are generally expressed as: nickel-cadmium Ni-Cd, nickel-hydrogen Ni-MH and lithium battery Li. In recent years, a fuel cell has also appeared in the notebook field. Nowadays, lithium batteries are widely used in notebooks, but a few models use obsolete Ni-MH batteries, which consumers can identify from the battery labels. 3. Why does the manufacturer only guarantee the battery for one year? A: Lithium batteries have a short service life. Generally, lithium batteries are only charged 400-600 times, and the products that have been specially improved are only 800 times, and they are scrapped after about 2 years of use. 4. Why doesn't the battery have the time of factory trademark? A: The test conditions are different. Some manufacturers use 8-cell batteries for testing, but give users 6-cell batteries; Some manufacturers use methods such as closing all programs, reducing the brightness of LCD screen, and disabling power consumption interface to measure the use time, which is impossible in daily application; Some manufacturers only use software to test, and the software may make mistakes. 5. What should I pay attention to in the use and preservation of batteries? Answer: Pay attention to these problems when using: the first few charges must be fully charged for more than 8 hours before the lithium battery can be fully activated; Be careful not to overdischarge; It is best not to use batteries when using the power adapter. The problem of saving attention: it is best to take it out once a month; When storing, the battery should not be fully charged, but should be charged with 40%~50% electricity; Put it in a dry and cool place. What is the use of 1: 1394 interface? A: The 1394 interface is divided into 4-pin and 6-pin interfaces, which are mainly used to connect digital cameras to transmit image data. At present, the general notebook uses a 4-pin connector, and the external optical drive model generally uses a 6-pin connector to connect the optical drive. Of course, Apple's laptop uses a 6-pin 1394 interface. What is the use of 2: S terminal? A: The main purpose of the S-terminal is to connect the laptop with the TV and input the pictures on the computer to the TV. 3. What's the use of a card reader? A: The main purpose of the card reader is to realize the image data transmission between the digital camera and the notebook computer. Nowadays, many digital cameras use memory cards or memory sticks, and card readers can read the data in these memory cards and memory sticks and transmit them to notebook computers. 4.4: What is the purpose of PC card slot? A: The PC card slot is equivalent to the PCI slot of the desktop, but the difference is that the PC card slot can be plugged in and out. Therefore, some functions can be realized by combining PC cards with different purposes. For example, using PC wireless network card can realize wireless internet access; You can watch TV by using PC TV receiving card; Using a PC sound card can enhance sound effects and so on. 5.5: Is USB interface allocation important? Answer: it is more important and directly related to the comfort of use. If the design is too crowded, using multiple USB devices will conflict; If it is only designed on the left side, the mouse is inconvenient to use. Therefore, the distribution of USB interfaces is also very important for a good model. There are many connections. I don't know how to look at them.