I hope these tips will help you buy a computer.
Laptop computers are currently equipped with a variety of features that vary by type and price. General purposes include: document management, data processing, Internet networking, company presentations, drawing and layout, animation production, music editing, multimedia applications. In the purchase of notebooks, price checking network suggests that you in the purchase of notebook computers should be for their specific needs, so as to maximize the effectiveness of the product. Specifically, you can refer to the following points.
1. CPU, motherboard and memory
CPU is divided into two categories of laptop mobile special CPU and ordinary CPU. Their main difference is that the CPU package is not the same, the laptop CPU emits less heat, so that the machine runs more stable. Currently used CPU is usually Intel and AMD designed for the characteristics of laptop computers notebook processor, the mainstream products are mostly Pentium series Celeron series. Good processor determines the speed of the machine and the overall performance of the play, but the same frequency product performance difference is not great. In addition to the mainstream models mentioned above, there are a lot of models around 10,000 yuan, if for office and general multimedia applications, is also a good choice. But if you want to get better performance, high-end applications in the office and graphics processing, it is best to choose a higher-end products. Thus, users in the purchase of the best according to their own needs to start, do not want to cheap or new blindly buy. Notebook computers on the market for more than 64M or 128M memory, which is the more mainstream configuration. Of course, it can be upgraded to 256M or higher on demand.
2. Display
Nowadays, laptops are basically TFT. The display is probably the most expensive part of the notebook, accounting for almost 40% of the cost. And it's easy to damage, so be extra careful when using it. The main specification of the display in the size, basically 12, 13, 14, 15 kinds of. From the point of view of use, of course, the bigger the better. From the quality point of view, high-quality display brightness, clarity, better, higher refresh frequency, less white spots.
3. Battery life
Currently, there are two main types of batteries, Lion and Ni MH. Lion batteries are the mainstream, generally intelligent batteries, with memory functions, and lighter weight, generally longer use, and more expensive; Ni MH batteries are generally heavier, and may often need to learn the battery to wash away its memory, but relatively inexpensive. memory, but the price is relatively inexpensive.
4. Hard disk capacity
With the laptop hard disk capacity is getting bigger and bigger, the current laptop is basically 20G-40G as the mainstream configuration. In addition to the capacity, but also consider the hard disk thickness, speed, mania, average seek time, whether the power saving parameters. Nowadays, 7200rpm is the development direction of notebook hard disk.
5. CDROM and DVD
The current optical drives are divided into CDROM and DVD. Optical drive has become more and more important, usually the machine is equipped with a CDROM drive, in the selection of the machine should pay attention to the stability of the optical drive to read the disk, read the disk sound, read the disk error correction ability, optical drive speed. In addition, the current high-end machines have been equipped with DVD, at the same time, should be equipped with the corresponding DVD disc, in order to better utilize the advantages of DVD. DVD optical drive and CDROM disc compatible. At present, the built-in optical drive is now more than 32-52X for the popular configuration. DVD drive more than 8X products are mainly due to the compatibility of CD, VCD, DVD, I think that if you have enough money, you can choose this configuration.
6. Multimedia applications
Most of the laptops on the market now have certain multimedia features, such as soft decompression, MPEG card, sound card, graphics card, speakers, etc., and some have even been equipped with a DVD. to pay attention to whether the machine has an audio input/output ports, MIC interfaces. In the network now notebook computers are generally equipped with Modem, Modem configuration in the form of said to be similar, built-in and external products are 56K for the mainstream configuration.
7. Noteworthy places
We must also pay attention to the key points are: the warranty period provided by the manufacturer, as well as maintenance services; whether the product packaging is complete (including the product warranty), whether to provide a detailed description of the use of the product; the driver for the various settings is complete; the configuration of the configuration table of the various configurations (such as floppy disk drive, CD-ROM, DVD-ROM, or Dock-ROM), the configuration of the computer, the configuration of the computer, the configuration of the computer, the configuration of the computer, and the configuration of the computer. -ROM, or Dock?ingStation, etc.), to ask what accessories are randomly attached, which belong to the optional. These are some of the background knowledge that you should have when purchasing a machine. You can buy a machine before from a variety of media (including the Internet, newspapers, television, etc.) and various vendors or manufacturers to obtain the appropriate information and prices.
Maintenance and care of notebook computers
To have a laptop computer with a high price is a very enviable and happy thing. But the laptop belongs to high-tech, high-precision products, in order to use and extend its service life and maintain a good working condition, the reasonable use of methods and correct maintenance is very necessary, in this article, we through the laptop components of the maintenance of skills, guide you to the correct and reasonable use of the laptop, to extend the life of your laptop, and at the same time to ensure the safety of your data.
LCD Panel
The most expensive part of a laptop may be its LCD monitor. So we can't afford to be sloppy about its maintenance. When we temporarily do not need to use the best screen saver or display a black screen, this is to save power and will extend the life of the LCD monitor. If a long time to go out, then you should simply turn off the power of the LCD monitor, which can extend the service life of the backlight lamp. The surface of the LCD screen will attract dust due to static electricity. We recommend purchasing a special LCD screen cleaning cloth to clean your screen and wipe it gently.
Battery
Most users are accustomed to having their laptops plugged into an AC power source every time they use them, and rarely use the battery to power their laptops. In fact, you should use the battery at least once or twice a month to fully utilize the battery, and then connect it to an AC power source for a one-time full charge. Remember that for rechargeable batteries, "dry full charge" is helpful but not harmful, it's just a bit of a pain in the ass to do.
Keyboard
When dust accumulates, use a small brush to clean the crevices, a high-pressure jet canister like those used to clean the lenses of cameras to blow out the dust, or a handheld vacuum cleaner to remove dust and debris from the keyboard. To clean the surface, moisten a soft cloth with a little cleaner and gently wipe the surface of the keyboard with the computer turned off.
Hard Disk
Try to use the computer in a stable environment, avoiding locations that are prone to shaking. The hard drive is at its most vulnerable during the boot process. At this time, the hard drive bearings are not yet spinning at a stable speed, and vibration can cause a bad connection.
CD-ROM drives
Use a CD-ROM cleaning pad to clean the laser read head regularly. Please use both hands to insert the CD-ROM into the optical drive, hold the CD tray with one hand, and secure the CD-ROM with the other hand to avoid distortion of the CD tray.
Thermal Dissipation
In general, laptop manufacturers use fans, heat pipes, large heat sinks, and heat vents to reduce the amount of heat generated during operation. Here first to explain the principle of the laptop fan. Its principle and the desktop is completely different, it is in only when the CPU temperature is too high or overload will rotate, thus making an unpleasant sound. Therefore, we can use some CPU cooling software to reduce the noise, such as CPUidel.
Other Component Maintenance (Others)
Before cleaning and maintaining your laptop, be sure to follow the steps below to maintain your laptop and its peripherals:
Step 1: Turn off the power and remove the external power cord, remove the internal battery and all external device connections, and replace the battery with a new one from your laptop's battery compartment. battery and all external device cables.
Step 2: Use a small vacuum cleaner to remove dust from the connectors, keyboard crevices, and other areas.
Step 3: Wipe the surface of the case gently with a dry, dampened cloth. Be careful not to drip any cleaning agent into the case to prevent circuitry from burning out.
Step 4: Prepare a photocopier, because the cursor movement of the photocopier is very precise. There's no need to put a mouse pad under the optical mouse, as long as it's not on glass or objects with strong reflections, the optical mouse can theoretically be used on top of all sorts of other, even slightly bumpy, objects. This reduces wear and tear on the laptop's control system.
As long as you can maintain and care for your laptop from all the aspects mentioned above, you can minimize the possibility of damage to your laptop and achieve the goal of extending the life of your laptop. By maintaining and caring for your laptop in the ways described above, you can also keep your data safer, so you can play with your laptop with ease, pleasure, and peace of mind.