August 5, 2010
1, the shell HP Pavilion dv8000 Battery (hp dv8000 battery), the HP HSTNN-DB20 Battery, In addition to looking outward for the desktop shellAlso play a role for the protection of the internal components. The shell material is more popular are: engineering plastics, magnesium alloy, carbon fiber composite materials (carbon fiber reinforced plastics). In which the carbon fiber composite shell extension of both plastic and magnesium low density and high rigidity and shielding alloy is more excellent shell material. General hardware suppliers marked shell material is the surface material on the laptops, hand care and the bottom part of the general habit of using plastic. 2, Jing Ping (LCD) Beginning from the birth of laptop LCD screen to start using as its standard output device, classification roughly: STN, TFT liquid crystal display (TFT) and so on. Present a more civil level of LCD screen has excellent Sharp (SHARP) the company “super-black crystal” and Toshiba “low -temperature polysilicon, “and so on, these two are the thin film transistor liquid crystal display (TFT) LCD screen. In addition to off-screen LCD light-emitting device is also very important, low-quality LCD screen lamp will make the color temperature deviation very serious (mostly yellow or red). 3, processor Microprocessor (or CPU) and operating system with the work, control the operation of the computer. It like the computer brain. CPU will have a lot of heat, so the desktop through the air circulation fan and heat sink (from the floor, consisting of channel and fin system for taking processor heat) to cool the temperature of various components. Since very little room inside the laptop can not use these cooling methods, so its CPU usually: * has a lower operating voltage and clock frequency – this can reduce the heat, while reducing power consumption, but also reduce the processor speed. In addition, plug in an external power supply, the most notebook computer to a higher voltage and clock frequency of operation is used when the use of low battery voltage and frequency. * not by way of pins installed in the motherboard – desktop machine pin and socket occupy a lot of space. In some laptop motherboards, processors, installed directly on the motherboard, do not use sockets. Other motherboards use the Micro-FCBGA (flip chip ball array network), which is used instead of the ball pin. This design saves space, but in some cases also means that processors can not be removed from the motherboard replaced or upgraded.Sony PCGA-BP4V Battery, Sony PCGA-BP71 Battery, * have a sleep or slow running mode – If the computer is idle or processors do not need to fast running, computers and operating systems will complement each other to reduce the CPU speed. Apple G4 processor, the data will determine the priority to save battery power as possible. Some laptops use desktop CPU, but will they set to run at lower clock frequency. While this can improve performance, but these laptops will usually generate more heat and significantly reduce battery life. Laptops usually have a small fan, radiator, heat pipe thermal films or to help discharge CPU heat. Some of the more high-end notebook models and even through the heat pipe arrangement along the channel filling coolant to reduce heat . In addition, most notebook computers are close to the case of the edge CPU. This fan can be directly blown to the outside heat, not blowing the other parts. 4, thermal systems Laptop cooling system consists of thermal equipment and cooling equipment, whose basic principle is that the thermal equipment (now generally used heat pipe) to heat concentrated cooling device (now usually use heat sinks and fans, but also the use of the cooling system model) shed. Cooling devices are the keyboard hidden, in hammering the keyboard will be dispersed among a lot of heat. Five, digital equipment (Pointing device) Laptops usually carry a body in the machine positioning equipment (equivalent to desktop mouse, but also equipped with two sets of positioning equipment, model), the early general use Trackball (Trackball) as a positioning device, is now more popular touch Board (Touchpad) and TrackPoint (Pointing Stick). 6, plate Hard disk Performance of the overall system performance has an important impact. Hard drive is not bigger is better. Because of the larger hard drive, search for information relative to the longer time. The current mainstream notebook PCs equipped with large capacity hard drives generally can ensure the mobile office has sufficient leeway. The need for frequent users of mobile Internet, in order to store large amounts of disk cache, and download the software and the capacity of the the hard drive should be sufficient. But if you need to replace desktop computers notebook computer, or you do not any of the backup device words, such as CD-RWs or the ZIP So if you are a regular Zhizuo the multimedia slides available from then because of the voice, the image the animation And other documents need to take a lot of hard disk space, then, can choose to 250GB or 320GB hard drive capacity. Of course, if you are very focus on the hard disk performance, you can choose more powerful nowadays TB-class large-capacity hard drive. Toshiba Satellite A65 Series Battery, Toshiba Satellite 2100 Battery
Because of heat, power consumption and volume constraints, notebook hard drive speed, sustained transfer speed and random speeds are lower than the desktop hard drive. Now the mainstream desktop hard drive speed 7200rPm, but speed is still 5400 notebook hard drive-based. Although the market has long 7200RPM laptop hard drive, but because of price factors are not well spread.
7, deposit
Notebook computer memory to a certain extent, compensate for the slow processor performance degradation caused. Some notebook computers will be placed in the CPU cache memory or a place very close to the CPU to access data faster CPU. Some notebook computers are more bus to the processor, motherboard and memory to transfer data faster between.
Usually use a smaller laptop memory module to save space. Notebook computer memory used types include:
* Compact form factor dual inline memory module (SODIMM)
* double data rate synchronous dynamic random access memory ( DDR SDRAM)
* Single data rate synchronous random access memory (SDRAM)
* proprietary memory modules
Some notebook computer memory can be upgraded, and through the removable panel to easily removable memory modules.
8, Pond
And desktop computers are different, the battery is not only the laptop one of the most important component parts , but also to a large extent determines its ease of use. On the laptop, the light and thin batteries required makes unusual demands. IDC study shows and weight, display size, backlight and other factors than laptop battery is the user most concerned about.
Notebook computers commonly used rechargeable batteries, but also provides general support for civil AC, so that is equivalent to the computer provides a performance very good UPS. But the ability to share with the civil AC, which depends on the type of battery. Can now see, there are three general types of batteries. One is relatively rare nickel-cadmium batteries, this battery has memory effect, that is, each time after the battery completely run out of a separate charge , the charge must be a full to use. If each charge and discharge are not fully charge or discharge is not satisfied with the net reduction would result in battery capacity; the second is the nickel-hydrogen battery that basically no memory effect, charge and discharge more freely, thus, when used, can be Notebook computers with access to AC power adapter while the computer. At this point, if the battery is less than the state, you can use the computer while charging side, if the AC power failure , battery power automatically. More than two times the nominal battery power alone normally does not more than two hours, the actual use of time is generally about 1 hour. Price difference between the two cells do not. Lithium is the third mainstream products, characterized by high voltage, low weight, high energy, no memory effect, can also be charged at any time; in other conditions exactly the same circumstances, the weight of the lithium-ion Dian Chi Tong Yang Ni-MH battery than Extend the 5% power supply, generally two hours or more, and some even up to four hours, using the latest technology, ultra-Chang Shijian lithium Shan CLP up from 6 to 7.5 hours with second battery if 3 hours also supports the common use of up to 9 -11 hours as the case may be use the day to meet the needs of mobile office. In the high-end notebook computers are equipped with such batteries. IBM ThinkPad T40 Battery, IBM ThinkPad T41 Battery,
In addition to its own capacity and quality of the battery, the notebook computer power management capabilities are also users must be considered. Currently, almost all laptops support ACPI power management features, the motherboard chipset can also be controlled by controlling the memory clock, the memory settings in low-power state to reduce energy consumption. Intel SpeedStep technology by reducing the processor speed to prolong battery life. Another is the power supply and battery-related adapter, preferably automatically stop when the battery is fully charged, but only after the main power supply to function, it can effectively prevent the battery from overcharging, help extend battery life. Meanwhile, some high-end notebook computer circuit design large, low-power consumption of electronic components their relative will be reduced.
< br /> 9, sound card
Most laptops with a sound card or integrated motherboard audio processing chip, and with a small built-in speaker. However, small notebook computers are usually not enough interior space to accommodate top-quality sound card or high-quality speakers. Game enthusiasts and audio enthusiasts can take advantage of external audio controller (with USB or FireWire port to connect to a notebook computer) to make up for notebook computers on the lack of sound quality. < br />
10 cards
Integrated and discrete graphics cards are divided
Integrated graphics is the graphics chip, memory and related circuitry are doing on the motherboard, and motherboard integration; integrated graphics chip has a separate display, but most are integrated in the motherboard Northbridge chip; some motherboard integrated Is also a separate graphics card installed memory on the motherboard, but its smaller-capacity, integrated graphics display and processing performance is relatively weak, can not upgrade graphics hardware, but you can adjust the frequency or brush through the CMOS BIOS file into the new realization Software upgrade to tap the potential of graphics chips; integrated graphics has the advantage of low power consumption, heat a small , part of the integrated graphics performance has been comparable to entry-level discrete graphics, so do not spend extra money to buy cards.
HP notebook service
Goods Return time: 7 days from the date of purchase
Free replacement time: 8 ~ 15 days after purchase
Product warranty period: the serial number label with “1YR”, “2YR”, “3YR” or similar signs of HP notebook computers, were 1 year warranty, 2 years, 3 years, accessories and1 year warranty
Home SeriesWarranty 1 year, 2-year major parts warranty, commercial high-end series of machine 3 years warranty, 1 year battery warranty
Other Special Services: Provides a variety of levels of service, including the provision of day 4-hour onsite service (acceptable repair time: 8:30 – 17: 30), etc.
Note:
Maintenance, remember to bring the invoice, warranty card, three bags of evidence. Without the invoice, the date calculated by the factory warranty. HP Gold service is good enough, but the need to purchase this service [8]
“Computer World” annual PC brand
“Nanfang Daily” year The most popular notebook brands, Dell Inspiron 6000 Battery, a Dell Inspiron 9300 Battery,
“电脑商情报 industry most popular brands
Sina 2008 Network, the Festival Best Laptop Brand,
Notebook brand “Computer World” Annual PC brand “ Annual PC brand computers in the world,” the annual PC brand [1]
2 Recommended Model
Recommended computer model HP Compaq Presario CQ40-403TX
Processor: AMD Athlon X2 QL-64 (2.1G)
Motherboard Chipset: AMD M780G SB700 < br />
the Memory capacity: 1G
Hard disk capacity: 160GB
Screen Size: 14.1 inches
Card type: the Integrated ATI Mobility Radeon HD 3200
Weight: about 2.32Kg
Recommended reason:
First, the price is 3,900 yuan, 4,000 yuan not meet your requirements, and then look at the price of what configuration?
Processor, the frequency reached 2.1G, memory capacity has 1G, 160G hard drive capacity also have to meet needs for daily use, but this notebook also incorporate a built in DVD ± RW, so make up a small enough hard disk capacity, because the data Information can be saved by burning. The notebook integrated graphics supports DirectX 10, there are wireless cards that can be used on the wireless LAN. Piano paint materials look to the notebook look more beautiful.
3 Comparison of some models
(1), HP Compaq nx9040 Notebook PN878PA
Basic Overview
The new HP Compaq nx9040 Notebook PC PN878PA latest notebook M3N come out. New HPCompaqnx9040 PN878PA The notebook computer is a notebook in Europe and the United States market, following the good response the first time, the Chinese mainland after the sales, Zuoweirongru Duoxiang advanced technology of today a high-tech, products is concerned, the HP is bring to consumers Not only the product itself superior Performance and better share of for ASUS advocated enjoy classic taste of life in. the product concept. the HP continues to use the advantages of Digital channels to develop the Chinese market.
Brand new HP Compaq nx9040 Notebook PC PN878PA Processor: Intel Pentium M processor 1.6 (2M 2 cache, dothan core hard drive: 40GB Memory: Standard 256MHzDDR memory, an open slot, the screen: 14.1 inch color display TFTXGA Screen resolution 1024×768XGA (1600 million colors) Wireless support: support Intel802.11b / g Power Supply: standard six-cell lithium ion battery, external 65W adapter drive: DVDPC card slots: two TypeIIPC card slot supports 32-bit 16-bit CardBus and PCMCIA card positioning device: two-way scroll with the touchpad and touchpad buttons open \ off button I / O ports and interfaces: parallel, serial, VGA, RJ-45, RJ- 11 FireWire interface, two USB2 .0 interface, infrared interface, audio input \ output, S-Video terminal security features: Fast lock, KensingtonLock slot size (length x width x high): 329.2mmx 272.2 x39.6mmDOS operating system, Weight: 2.7 kg onwards.
HP has always been a practical idea and delicate design, without exception, embodied in the PN878PA series notebook computer, while using the product designer words, he wants to convey is that when closing the laptop, the silver shell with a bright light is, Energetic and solid; and open, gentle, deep inside in turn reveal detailed, smooth lines. It can be said, HPCompaqnx9040 notebook PN878PA series is solid and practical, artistic and unique aesthetic character of the multi-fusion, and it is enough to conditional Competition on the market today all brands in the same grade models
