Computer Operation misunderstanding

With the increasing popularization of IT products, many families have purchased household computers. Due to the uneven computer level, it is inevitable that some "cainiao" or even "prawns" may be mistaken in computer operations, some seemingly inadvertent misoperations may immediately turn your computer back to the West and even hurt your health. Based on this, the author will accumulate experience and misunderstandings in the long-term use of computers, so as to improve the computer level and avoid harm, so that computers can better serve us and faithfully.

Misunderstanding: Clean the monitor with high-purity anhydrous alcohol

As an important medium for human-computer exchange, a display is stuck with dust and stains for a long time. Many friends take it for granted that alcohol, especially high purity (more than 95%), is the best detergent. On the contrary, the current display (CRT type) usually has a special protective coating on the screen for anti-static and glare, alcohol, as a good organic solvent, can easily destroy this special coating, compromising the Display Effect of the display.

Correct practice: the screen of the monitor, including its housing, cannot use alcohol, gasoline, washing powder and other solvents. If conditions are met, please use a special display detergent. If the conditions are not met, you can purchase several bottles of purified water on the market to clean the display screen and shell. In addition, be especially careful when cleaning the screen. Do not use regular coarse towels. Purchase 1 ~ Two high-quality glasses fabric instead.

Misunderstanding 2: Opening the chassis and making the computer accessories in the chassis "streaking" is the best heat dissipation

The summer is approaching, and many cainiao and even many DIYer have chosen cheap and convenient heat dissipation solutions to enhance heat dissipation or facilitate hardware disassembly and assembly-making computers "streaking ". However, I think this is very inappropriate. First, although it solves the problem of heat dissipation, The dismounting of the chassis makes it easy to accumulate dust when the hardware is exposed. In the long run, "dust" will also become the computer killer. Second, this practice is very harmful to human health. As we all know, CPU, motherboard, power supply, and other hardware are high electromagnetic radiation sources, and the chassis shields us from most of the electromagnetic radiation, which is the "Protection God" for healthy computers ". If we expose our bodies to high electromagnetic radiation just for the sake of heat dissipation, it is not worth the candle to joke about health.

Misunderstanding 3: Dust Protection immediately after Shutdown

Many friends pay attention to the dust-proof computer after purchasing a new power supply. They have customized a dust-proof cover. This is understandable, but it is not advisable to immediately install the dust-proof cover after shutdown. It turns out that after shutdown, there is still a large amount of heat in the chassis, the display is not emitted, the temperature of all kinds of electronic components is very high, need a gradual heat dissipation process, if immediately covered with dust cover, it is not conducive to the heat dissipation of hardware, and even seriously affects its service life.

Correct practice: shutdown 1 ~ 2 hours later, the dust cover can be used only when the heat in the standby box is dispersed.

Misunderstanding 4: Live hot swapping of various computer peripherals

Many of my friends perform various hardware operations to save trouble when they do not shut down the mouse, keyboard, and a variety of serial and parallel interfaces of PS/2 interfaces are plugged in without power. These operations are seemingly common, but very dangerous. Otherwise, the system or hardware may not work properly, and the hardware interface or motherboard may be damaged if the hardware is heavy.

Correct practice: Apart from USB, IEEE1394 interface and serial hard disk, General desktop peripherals are not charged for hot swapping, so do not worry about other hardware operations, make sure to perform proper operations when the power is turned off to avoid unnecessary losses.

Misunderstanding 5: Exposure to computer hardware, no static defense

Many of my friends know that static electricity is a potential "killer" of computer hardware in their subconscious. However, due to insufficient attention, the inertia of operations and the existence of luck, hardware operations are often "illegal", so that the "spark" flash, the motherboard, memory, graphics card and other components in the computer in a short moment, it is "Fragrant. Because static electricity is everywhere in our lives, it is very easy to accumulate a large amount of static electricity when we come into contact with and repair computers, therefore, effective measures must be taken to avoid the fatal damage caused by static electricity to High-Precision Components in the computer.

Correct practice: first of all, ensure the reliable grounding of the Computer chassis. Before you open the computer chassis to contact the computer hardware, it is best to contact the metal part of the chassis or other grounding metal, release static electricity in the body through Transient Contact. In addition, the removed computer hardware can be properly stored in an anti-static plastic bag. In the case of hardware-sensitive operations, wearing an anti-static ring can play a very good anti-static role. Finally, the generation and release of static electricity are seasonal, especially in winter, so we should be more vigilant and cautious.

Misunderstanding 6: The drive becomes a "Player" and the "clean" drive becomes a killer

Many of my friends are now equipped with CD or DVD optical drives. in order to work on the disk, they often use the optical drive to play normal VCD, DVCD, and DVD. In fact, this is a bad habit. Although this is convenient for the moment, it will greatly shorten the service life of the optical drive and make it "decommissioned ". The main reason is that the optical drive will frequently change the motor speed and laser head frequency when reading the ordinary disc. After a long time, it will cause the wear of mechanical parts of the optical drive and serious aging of the laser head.

Correct practice: to maintain the optical drive, you can attach your favorite audio drive to your computer's hard drive to enjoy it slowly. Try to use it as little as possible and do not use the optical drive to watch the audio drive, not to use the optical drive as a video drive!

As a consumable product, the optical drive will often suffer disk reading capability decline to varying degrees after a period of time, at this time, many of my friends are "smart"-they use a general cleansing disc to clean the optical drive, in order to improve or restore the Reading Capability of the optical drive. This is actually a misunderstanding: the home drive, including VCD, DVD, due to different working principles, its low speed is generally 2X, 4X, the use of the cleaning disc can play a certain role in cleaning; but the current speed of the optical drive is usually around 52X, then the cleaning disk does not play a proper role, on the contrary, because the high-speed rotation of the disc will not only scratch or even hit the laser head, it will become a "killer" of the optical drive"

Correct practice: if you want to improve the Reading Capability of the optical drive, you can ask a professional to enable the optical drive to clean it with a cotton ball or appropriately increase the transmit power of the laser head. Of course, the best way is to pay attention to the care and maintenance of the optical drive at ordinary times.

TIPS: 1. when the optical drive is reading a disk, that is, when the optical drive light is on, do not press the pop-up key on the optical drive Panel. It is best to press the pop-up key only when the light indicator is off and the drive is not reading the disk, otherwise, the drive Spindle Motor may fail.

2. After attaching the disc, be sure not to push the disc bracket directly by hand so that the disc can be stored in the warehouse, because the push intensity or angle deviation may cause failure of the drive part of the optical drive. The correct method is to press the pop-up key to enable the disc holder to automatically return to the warehouse.

3. After reading the disc, You must retrieve it in time and do not stop it in the optical drive. Although there is no read/write operation, the computer will automatically detect and pre-read the optical drive each time it is started, which not only reduces the operating speed of the system, but also adversely affects the service life of the optical drive.

Misunderstanding 7: power off is not required

It is often seen that some friends leave after executing the shutdown command in the system to save trouble after using the computer, and the host's power is not completely cut off (that is, unplug the power outlet, remove from the plug-in board), and sometimes even the display and speaker peripherals are still working. In fact, this poses a hidden danger to the hardware of the computer, because the power supply is not completely cut off when the system is shut down, and the power supply and motherboard in the chassis are still connected to the mains supply, in the event of voltage fluctuations or lightning weather, it is easy to cause complete damage to the main board, power supply and various peripherals. We would like to advise you to completely cut off the power supply after shutting down for the sake of insurance.