With the increasing popularity of IT products, many families have purchased home computers. Because of the uneven computer levels, it is inevitable that some "novice" or even "prawns" have more or less assumed misoperations in computer operation. Some seemingly unintentional misoperations may cause your computer to "return" immediately and may even harm your health. Based on this, the author will "tell out" the experience accumulated in the long-term use of computers and the misunderstandings that should be paid attention to, in order to improve the computer level and seek benefits and avoid harm, so that the computer can better work and serve us faithfully.
One of the misunderstandings: Use high-purity ahydrous alcohol to clean the monitor
As an important medium for human-computer exchange, the monitor will inevitably stick to dust and stains after use. Many friends take it for granted that alcohol, especially high purity (more than 95%), is the best cleanser. The fact is just the opposite. Today's monitors (CRT types) generally have a special protective coating on the screen, which is used to prevent static electricity and glare. Alcohol, as a good organic solvent, is very easy to destroy this special coating, which greatly reduces the display effect of the monitor.
Correct method: The screen of the monitor, including its shell, cannot use alcohol, gasoline, laundry detergent and other solvents. If conditions permit, please use a special monitor cleaner. If the conditions are not met, you can buy a few bottles of pure water on the market to clean the monitor screen and shell. In addition, be careful when cleaning the screen, do not use ordinary thick towels, and buy 1 to 2 glasses cloths with good quality instead.
Misconception 2: Open the chassis and let the computer accessories in the chassis "run naked" is the best heat dissipation
Summer is here, and many "novices" and even many DIYers have chosen cheap and convenient cooling solutions to strengthen heat dissipation or facilitate disassembly and assemble hardware - to let the computer "run naked". However, I think this move is very inappropriate. First, although the heat dissipation is solved, the "breaking belly" of the chassis makes it easy for the hardware to accumulate dust when exposed. In the long run, "dust" will become a killer of computers. Secondly, this practice is very harmful to human health. As we all know, CPU, motherboard, power supply and other hardware are all sources of high electromagnetic radiation, and the chassis has blocked most of the electromagnetic radiation for us and is the "protective god" for our healthy use of computers. If we just want to dissipate heat and expose our bodies directly to high electromagnetic radiation, it will be more than worth the effort to joke about health.
Misconception 3: Close the dust cover immediately after shutting down
Many friends pay great attention to the dust protection of the computer after purchasing a new computer and specially customized a dust protection cover. This book is understandable, but it is not advisable to cover the dust protection cover immediately after turning off the computer. It turns out that after shutting down, there is still a lot of heat in the chassis and the monitor that has not been emitted. The temperature of various electronic components is very high, and a gradual heat dissipation process is required. If the dustproof cover is covered immediately, it is very unfavorable to the heat dissipation of the hardware and may even seriously affect its service life.
Correct method: After shutting down the machine for 1 to 2 hours, the heat in the standby chassis can be used before using a dust cover.
Misconception 4: With electric hot plug and unplug various computer peripherals
Many friends often plug and unplug the PS/2 interface mouse, keyboard and various serial and parallel devices without shutting down when performing various hardware operations. These seemingly ordinary but very dangerous operations. At the very least, the system or hardware work abnormally, and at the worst, the hardware interface or motherboard damage.
Correct way: In addition to USB, IEEE1394 interface and serial hard drive, all peripherals of ordinary desktops cannot be powered on. Therefore, friends should not be afraid of trouble when operating other hardware. They must perform the correct operation when power is turned off to avoid unnecessary losses.
Misconception 5: Contact computer hardware and not guard against static electricity
Although many friends subconsciously know that static electricity is a potential "killer" of computer hardware, due to insufficient attention, and the laziness in operation and the existence of luck, they often perform "illegal" hardware operations, resulting in a "spark" flash, and the motherboard, memory, graphics card and other components in the computer "disappeared" in a short moment. Since static electricity is everywhere in our lives and it is very easy to accumulate a large amount of static electricity when we contact and repair computers, effective measures must be taken to avoid the fatal damage caused by static electricity to high-precision components in the computer.
Correct approach: First of all, ensure the reliable grounding of the computer case. Before opening the computer host case to contact the computer hardware, it is best to use your hand to contact the metal part or other grounding metal on the outside of the case to release the static electricity on the body through brief contact. In addition, the removed computer hardware can be placed in an anti-static plastic bag and stored properly. When performing sensitive hardware operations, it can play a good anti-static effect by wearing an anti-static ring. Finally, the generation and release of static electricity is seasonal and is particularly obvious in winter, so you should be more vigilant and cautious in operation.
Misunderstanding 6: Use optical drives as "movie disc machine", and "cleaning" the CD becomes a killer
Many friends now have CD or DVD drives. In order to achieve both the disk viewing work, they often use the optical drive to play ordinary VCD, DVD and DVD movies. Actually, this is a very bad habit. Although doing this temporarily makes it convenient for me, in the long run, it will greatly shorten the service life of the optical drive and finally "scrap". The main reason is that when the optical drive reads ordinary discs, it has to frequently change the motor speed and laser head frequency. Over time, it will cause wear of the optical drive mechanical components and severe aging of the laser head.
Correct way: For the sake of maintaining the optical drive, you can copy your favorite video disk into the computer's hard drive and enjoy it slowly. You should try to use it as little as possible and not use the optical drive to watch the video disk, and you should not treat the optical drive as a video disk player!
As a consumable, optical drives often suffer from degradation in disk reading ability to varying degrees after being used for a period of time. At this time, many friends have "smart moves" - using ordinary cleaning discs of the cleaning discs of the DVD player to clean the optical drive in order to improve or restore the disk reading ability of the optical drive. This is actually another misunderstanding: household DVD players including VCDs and DVDs have different working principles, and their speed is generally 2X and 4X, and using a cleaning disc can play a certain cleaning role; however, the speed of the optical drive is often around 52X, and the cleaning disc cannot play the role it should do. On the contrary, due to the high-speed rotation of the disc, it will not only scratch or even hit the laser head, becoming an absolute "killer" of optical drives.
Correct way: If you want to improve the disk reading ability of the optical drive, you can ask a professional to turn on the optical drive and clean it with a cotton ball or appropriately increase the transmission power of the laser head. Of course, the best way is to pay attention to the care and maintenance of the optical drive in daily life.
Tip: 1. When the optical drive is reading the disk, do not forcefully press the eject key on the optical drive panel when the optical drive light is on. It is best to press the eject key when the indicator light is off without the disc reading action. Otherwise, the spindle motor of the optical drive may malfunction in the long run.
2. After putting the CD in, be careful not to push the CD holder directly with your hands to make the CD enter the compartment, because the deviation of the pushing force or angle can easily cause the optical drive transmission part to malfunction. The correct way is to press the eject key to automatically return the disc tray to the compartment.
3. After reading the CD, you must take it out in time and do not stagnate it in the optical drive. Although there is no read and write operation, the computer will automatically detect and pre-read the optical drive every time it starts, which not only reduces the system's running speed, but also has an adverse impact on the life of the optical drive.
Misconception 7: Don’t have to cut off the power supply when shutting down the machine
I often see some friends who have left after using the computer to save trouble and execute shutdown commands in the system, and do not completely cut off the power supply of the host (that is, unplug the power socket and completely remove it from the plug-in board). Sometimes even peripherals such as monitors and speakers are still working. This actually poses a hidden danger to the computer's hardware, because the system does not completely cut off the power supply when it is turned off, and the power supply and motherboard in the chassis are still connected to the mains power supply. Once voltage fluctuations occur or lightning weather occurs, it is very easy to cause complete damage to the motherboard, power supply and various peripherals. I would like to advise everyone to completely cut off the power supply after shutting down the power for safety reasons.
One of the misunderstandings: Use high-purity ahydrous alcohol to clean the monitor
As an important medium for human-computer exchange, the monitor will inevitably stick to dust and stains after use. Many friends take it for granted that alcohol, especially high purity (more than 95%), is the best cleanser. The fact is just the opposite. Today's monitors (CRT types) generally have a special protective coating on the screen, which is used to prevent static electricity and glare. Alcohol, as a good organic solvent, is very easy to destroy this special coating, which greatly reduces the display effect of the monitor.
Correct method: The screen of the monitor, including its shell, cannot use alcohol, gasoline, laundry detergent and other solvents. If conditions permit, please use a special monitor cleaner. If the conditions are not met, you can buy a few bottles of pure water on the market to clean the monitor screen and shell. In addition, be careful when cleaning the screen, do not use ordinary thick towels, and buy 1 to 2 glasses cloths with good quality instead.
Misconception 2: Open the chassis and let the computer accessories in the chassis "run naked" is the best heat dissipation
Summer is here, and many "novices" and even many DIYers have chosen cheap and convenient cooling solutions to strengthen heat dissipation or facilitate disassembly and assemble hardware - to let the computer "run naked". However, I think this move is very inappropriate. First, although the heat dissipation is solved, the "breaking belly" of the chassis makes it easy for the hardware to accumulate dust when exposed. In the long run, "dust" will become a killer of computers. Secondly, this practice is very harmful to human health. As we all know, CPU, motherboard, power supply and other hardware are all sources of high electromagnetic radiation, and the chassis has blocked most of the electromagnetic radiation for us and is the "protective god" for our healthy use of computers. If we just want to dissipate heat and expose our bodies directly to high electromagnetic radiation, it will be more than worth the effort to joke about health.
Misconception 3: Close the dust cover immediately after shutting down
Many friends pay great attention to the dust protection of the computer after purchasing a new computer and specially customized a dust protection cover. This book is understandable, but it is not advisable to cover the dust protection cover immediately after turning off the computer. It turns out that after shutting down, there is still a lot of heat in the chassis and the monitor that has not been emitted. The temperature of various electronic components is very high, and a gradual heat dissipation process is required. If the dustproof cover is covered immediately, it is very unfavorable to the heat dissipation of the hardware and may even seriously affect its service life.
Correct method: After shutting down the machine for 1 to 2 hours, the heat in the standby chassis can be used before using a dust cover.
Misconception 4: With electric hot plug and unplug various computer peripherals
Many friends often plug and unplug the PS/2 interface mouse, keyboard and various serial and parallel devices without shutting down when performing various hardware operations. These seemingly ordinary but very dangerous operations. At the very least, the system or hardware work abnormally, and at the worst, the hardware interface or motherboard damage.
Correct way: In addition to USB, IEEE1394 interface and serial hard drive, all peripherals of ordinary desktops cannot be powered on. Therefore, friends should not be afraid of trouble when operating other hardware. They must perform the correct operation when power is turned off to avoid unnecessary losses.
Misconception 5: Contact computer hardware and not guard against static electricity
Although many friends subconsciously know that static electricity is a potential "killer" of computer hardware, due to insufficient attention, and the laziness in operation and the existence of luck, they often perform "illegal" hardware operations, resulting in a "spark" flash, and the motherboard, memory, graphics card and other components in the computer "disappeared" in a short moment. Since static electricity is everywhere in our lives and it is very easy to accumulate a large amount of static electricity when we contact and repair computers, effective measures must be taken to avoid the fatal damage caused by static electricity to high-precision components in the computer.
Correct approach: First of all, ensure the reliable grounding of the computer case. Before opening the computer host case to contact the computer hardware, it is best to use your hand to contact the metal part or other grounding metal on the outside of the case to release the static electricity on the body through brief contact. In addition, the removed computer hardware can be placed in an anti-static plastic bag and stored properly. When performing sensitive hardware operations, it can play a good anti-static effect by wearing an anti-static ring. Finally, the generation and release of static electricity is seasonal and is particularly obvious in winter, so you should be more vigilant and cautious in operation.
Misunderstanding 6: Use optical drives as "movie disc machine", and "cleaning" the CD becomes a killer
Many friends now have CD or DVD drives. In order to achieve both the disk viewing work, they often use the optical drive to play ordinary VCD, DVD and DVD movies. Actually, this is a very bad habit. Although doing this temporarily makes it convenient for me, in the long run, it will greatly shorten the service life of the optical drive and finally "scrap". The main reason is that when the optical drive reads ordinary discs, it has to frequently change the motor speed and laser head frequency. Over time, it will cause wear of the optical drive mechanical components and severe aging of the laser head.
Correct way: For the sake of maintaining the optical drive, you can copy your favorite video disk into the computer's hard drive and enjoy it slowly. You should try to use it as little as possible and not use the optical drive to watch the video disk, and you should not treat the optical drive as a video disk player!
As a consumable, optical drives often suffer from degradation in disk reading ability to varying degrees after being used for a period of time. At this time, many friends have "smart moves" - using ordinary cleaning discs of the cleaning discs of the DVD player to clean the optical drive in order to improve or restore the disk reading ability of the optical drive. This is actually another misunderstanding: household DVD players including VCDs and DVDs have different working principles, and their speed is generally 2X and 4X, and using a cleaning disc can play a certain cleaning role; however, the speed of the optical drive is often around 52X, and the cleaning disc cannot play the role it should do. On the contrary, due to the high-speed rotation of the disc, it will not only scratch or even hit the laser head, becoming an absolute "killer" of optical drives.
Correct way: If you want to improve the disk reading ability of the optical drive, you can ask a professional to turn on the optical drive and clean it with a cotton ball or appropriately increase the transmission power of the laser head. Of course, the best way is to pay attention to the care and maintenance of the optical drive in daily life.
Tip: 1. When the optical drive is reading the disk, do not forcefully press the eject key on the optical drive panel when the optical drive light is on. It is best to press the eject key when the indicator light is off without the disc reading action. Otherwise, the spindle motor of the optical drive may malfunction in the long run.
2. After putting the CD in, be careful not to push the CD holder directly with your hands to make the CD enter the compartment, because the deviation of the pushing force or angle can easily cause the optical drive transmission part to malfunction. The correct way is to press the eject key to automatically return the disc tray to the compartment.
3. After reading the CD, you must take it out in time and do not stagnate it in the optical drive. Although there is no read and write operation, the computer will automatically detect and pre-read the optical drive every time it starts, which not only reduces the system's running speed, but also has an adverse impact on the life of the optical drive.
Misconception 7: Don’t have to cut off the power supply when shutting down the machine
I often see some friends who have left after using the computer to save trouble and execute shutdown commands in the system, and do not completely cut off the power supply of the host (that is, unplug the power socket and completely remove it from the plug-in board). Sometimes even peripherals such as monitors and speakers are still working. This actually poses a hidden danger to the computer's hardware, because the system does not completely cut off the power supply when it is turned off, and the power supply and motherboard in the chassis are still connected to the mains power supply. Once voltage fluctuations occur or lightning weather occurs, it is very easy to cause complete damage to the motherboard, power supply and various peripherals. I would like to advise everyone to completely cut off the power supply after shutting down the power for safety reasons.