Notebook computer shell should not only beautiful appropriately, show individual character, but also its material also contains a lot of knowledge, this to note the future use and maintenance of computer plays an important role. The role of notebook computer shell is mainly manifested in “protection”, “scattered heat” and “beautiful” these three aspects.

(1) shell species

Notebook computer common shells: ABS engineering plastic, polycarbonate, carbon fiber, aluminum magnesium alloys and titanium alloy to wait for a few kinds.

(1) the ABS engineering plastics

ABS engineering plastic namely PC + ABS (engineering plastic alloy), in the field of chemical industry, Chinese name is called plastic alloy. Was named PC + ABS, because this material has both PC excellent heat-resistance colophony, dimension stability and excellent resistance to impact can, also has the ABS resin excellent machining liquidity. What with its application in thin-walled and complex shapes of products to be maintained its superior performance, as well as plastic and a ester composition of materials of the formability.

ABS engineering plastic the biggest drawback is quality TOSHIBA Satellite Pro A100 battery weight, thermal conductivity poor. Generally speaking, ABS engineering plastic due to the low, so be into most laptop computer manufacturers adopted and most current plastic casing notebook computers are adopt ABS engineering plastics raw materials. Users can from the notebook PC shell internal material code on see the shell use, what material.

2 the polycarbonate

The polycarbonate PC notebook computer is the shell adopts a kind of material, the raw material is oil, the polyester chip factory processing became after polyester chip particulate, then after plastic factory processing become a finished product. From a practical point of view, the cooling performance than the ABS plastic, with heat disperse is evener, its biggest drawback is crisp, comparison: shatter easily. PC – GF – # # (polycarbonate PC) also called enhance modified PC, it has excellent impact strength, high heat resistance and good feet inch stability. Stability in water, mineral and organic acids, partial soluble in aromatic carbohydrates, soluble in chloride, can be in alkali under the action of decomposition. Enhance PC can greatly improve the corrosion resistance of environment. High liquidity PC can be used to produce less than 1mm thin-walled workpieces. PC modified creep resistance of the material degeneration and loads resistance to deformation capacity was obviously mention cover. PC – GF – # # with PC + ABS, compared to less ABS, but some characteristics of the PC – GF – # # has its own characteristics. Different specifications have different features, such as PC – GF10 PC – GF15, PC – GF20, PC – GF30 etc, they all have the ultra-high heat resistance and mechanical properties, the dimension stability, can replace the different degree of commercial electrical internal aluminum, lead or other metal stamping castings.

Using this kind of material compares the typical is FUJITSU. In many models are by PC – GF20 this material and is whole shell. No matter from the surface or from touch feeling awareness, PC – GF – # # material feels like a metal. Such as fruit laptop computer in no logo words, from outside surface not careful observation, the user will probably thought is alloy content.

(3) carbon fiber

Carbon fiber material is very interesting a kind of material, it has the characteristics of magnesium alloy aluminum decorous strong and ABS engineering plastic high plasticity. Its exterior similar plastic, but strength and guide the ability of heat beyond ordinary ABS plastic. And carbon fiber is a conductive material, can rise to similar metal shield effect (ABS shell need additional coated with metal film to play of shielding). Carbon fiber of strong early sex is aluminium magnesium alloy twice, and heat the best effect. Carbon fiber drawback is into the higher, forming no ABS shell easily, so the cabinet of carbon fiber dimension shape is compared commonly simple and lack of change, the color is more difficult. In addition there is a weakness, carbon fiber chassis grounding bad is if it could have a slight leakage inductance, so usually in its Dell Latitude D600 battery carbon fiber front-housing covered in a layer of insulating coating.

4 aluminium magnesium alloy

Aluminium magnesium alloy is usually the main element of aluminum, again incorporating a small amount of magnesium or other metal material to strengthen its hardness. Because of its this body it is metal, so its thermal conductivity and intensity is particularly ashdod out. Aluminium magnesium alloy qualitative jian lightweight, low density, heat dissipation better properties, compressive sex is stronger, can fully satisfy the 3C products are highly integrated generalization, lightweight, miniaturization, fight broke bump and electromagnetic shielding and cooling needs. Its hardness is traditional plastic front-housing several times, but weigh only one third of that for the latter, commonly used in high gear ultrathin model or smaller notebook shell. The pictures of notebook computer enclosure m. magnesium alloy coding.

Silvery white aluminium magnesium alloy shells can make the product more luxurious and beautiful outlook, and easily coloring, can pass surface treatment technology change into personalized powder blue and pink, can this laptop electrical brain graces many, this is engineering plastics and carbon fiber could comprehend. Thus aluminium magnesium alloy became portable type of notebook computer, most preferred shell material manufacturer notebook electrical brain products all adopt aluminium magnesium alloy enclosure technology. Faults: aluminum and magnesium alloy and is not very strong wear-resisting, with long can appear dark light color, and the cost is higher, forming difficulty (need to use than ABS pressing or die casting technology), so the notebook computer is normally only used in the aluminium magnesium alloy cover, little useful aluminum and magnesium’ll create whole cabinet fits.

Will5 titanium alloy

Titanium alloy material can be said to be aluminium magnesium alloy strengthening edition, titanium close gold and aluminium magnesium alloy of metal except incorporating compared outside, the most big different difference is also infiltrated the carbon fiber materials, so whether cooling, strength or surface texture etc are better than the aluminum and magnesium, and the processing fits the gold material better performance than aluminium magnesium alloy, the appearance is more complicated.

Its key breakthroughs are strong toughness stronger, and become thinner. Just watch tenacity, titanium alloy aluminum magnesium three to four times. Tenacity is taller, can withstand the pressure, the greater the and less able to support large size display. Therefore thorium alloy model is made with 15 inches display, also need not on panel around obligate too wide framework. As for thin degrees, titanium thickness only 0.15 mm, is half the aluminium magnesium alloy, thickness can be halved in let the notebook volume more delicate. Titanium alloy only fault is must by welding complex machining program just can make complex structural laptop shell, these production Sony PCGA-BP71 battery process inevitably derived considerable cost, therefore is very expensive. At present the titanium alloy and other composite material is still IBM appropriative material, this also is IBM T/X series of notebook computer more expensive one reason (now Lenovo bought company has charge of IBM’s PC department, the original of IBM’s PC USES new name “Lenovo”, and keep the “ThindPad” series notebook name use 5 years).

(2) discern shell material method

Actually, want to very accurately identify shell material is unlikely. From the notebook PC shell outside is see material code compiling coding is marked on the inner surface of the machine. As a consumer to market buyers are unlikely to see these marks, so some sales staff to sales, often can impractically exclusively devoted good speaking. In this connection, given below, introduces some basic consumption identification methods.

(1) color quality

No matter adopt what kind of materials, can be in the cabinet of the surface of different color painting, or processed into different grinding surface effect. So if all in metallic color painting words, from outside view on almost no difference, thus distinguish from color is unlikely. Cannot see silvery white is considered aluminum and magnesium alloy, or was it a PC, also do not see black with for not aluminium magnesium alloy.

(2) voice

From the basic voice can distinguish between the PC + ABS, PC still is aluminium magnesium alloy, titanium compound gold. Effective method is to use a small piece of metal objects, such as a single copper or aluminum keys (best choice) gently percussion enclosure, if the PC + ABS or PC sound can compare sink some, such as fruit is aluminium magnesium alloy is sound obvious brittle, and percussion edge part of it will have obvious metal clash. Another hand mean to tap the, aluminium magnesium alloy with PC + ABS, PC – GF may differ. With finger laptop batteries knapped aluminium magnesium alloy can feel subtle finger anti shock feeling, and if the PC + ABS or PC words, will feel some flexibility. And with finger knock the voices, PC + ABS or PC – GF voice to sink some, and aluminium magnesium alloy is very fragile.

Intel Pentium M Ultra Low Voltage 773 (1.30 GHz, 2 MB L2 cache, 400 MHz FSB)

Intel 915 GMS Chipset with Intel Integrated Graphics Media Accelerator 900 with up to 128 MB Shared Video Memory

1 GB (PC2-3200) Dual Channel DDR 2 533 MHz (1.5 GB Maximum)

80 GB 4200 RPM HDD Ultra ATA

Built in DVD Burner

11.1″ WXGA Display (1366×768 resolution) with XBrite Technology

Intel PRO/Wireless 2200 B/G Wireless LAN

Integrated Wireless Access Network (WAN) accessing Cingular Wireless National

EDGE Network

Integrated Bluetooth

1 x PC Card Slot

Memory Stick/SD Memory Card Slot

2 USB Ports/VGA Out/Port Replicator/Microphone&Headphone

Jack/Modem/Ethernet/FireWire

Instant ON DVD/Music Player

Laptop battery

Simply put, the battery life of the Sony TX is absolutely amazing. This laptop uses a 7800 mAH battery that only slightly protrudes from the back of the machine. Sony claims that a user can have anywhere from 4 to 7.5 hours of battery life with the standard battery. With Wi-Fi on and medium brightness, I easily had 4.5 to 5 hours. With Wi-Fi off I had well over 5 hours of battery life! If I kept the screen brightness at a minimum, I probably would have squeezed out even more battery life. I was really impressed with the battery life of this laptop. A business user would have no problems making cross country flights with this notebook. Sony also offers a heavier, higher capacity battery that has over 1.5 times longer life than the standard battery.

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Processor type: Core 2 Duo T5500

RAM technology: DDR2 533MHz

Chipset type: Intel 945PM

Hard drive type: Hitachi HTS541010G9SA00

Hard drive size: 120 GB

CD / DVD type: Matshita UJ-850S

Graphics processor: Nvidia GeForce Go 7400

Display technology: X-black LCD

Dimensions (W x H x D): 366×26x275mm

Operating system: Windows XP Media Center Edition

Included software: Photoshop Elements 4.0, Premiere Elements 2.0, WinDVD 5.0, Works 8.5

Included accessories: Card reader, Motion Eye webcam

Laptop battery

Battery technology: Li-ion

Battery capacity: 4800 mAh

Number of batteries supplied: 1

Estimated battery life (mfr): 3.6 hours

Max batteries supported: 1

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Processor: Intel Pentium M 730 / 1.6 GHz

Supported Flash Memory Cards: Memory Stick, Memory Stick PRO

Compliant Standards: IEEE 802.11b, IEEE 802.11g

Optical Storage Type: DVD±RW (+R DL) – integrated

Interfaces: 1 x modem – phone line – RJ-11 | 1 x network – Ethernet 10Base-T/100Base-TX – RJ-45 | 1 x display / video – VGA – 15 pin HD D-Sub (HD-15) | 1 x headphones – output – mini-phone stereo 3.5 mm | 1 x microphone – input – mini-phone 3.5 mm | 3 x Hi-Speed USB – 4 pin USB Type A | 1 x IEEE 1394 (FireWire) | 1 x docking / port replicator

Weight: 6.2 lbs

OS Provided: Windows XP Home Edition

Hard Drive: 80 GB – 4200 rpm

Max Resolution: 1280 x 800 ( WXGA )

RAM Technology: DDR SDRAM – 333 MHz

RAM Installed Size: 512 MB / 1 GB (max)

Display Type: 15.4″ TFT

Laptop battery

Installed Qty: 1

Technology: Lithium ion

Run Time (Up To): 5.5 hour(s)

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Platform Technology: Intel Centrino

Built-in Devices: Wireless LAN antenna , Stereo speakers

Width: 12.3 in

Depth: 8.9 in

Height: 1.4 in

Weight: 4.2 lbs

Notebook type: Thin-and-light (4-6 lbs.)

Wireless capabilities: IEEE 802.11b , IEEE 802.11g

Processor: Intel Pentium M 735 / 1.7 GHz

Technology: DDR SDRAM – 333.0 MHz

Graphics Processor / Vendor: ATI Mobility Radeon 9200

Data link protocol: Fast Ethernet , Ethernet , IEEE 802.11b , IEEE 802.11g

Interfaces: 1.0 x Hi-Speed USB – Ethernet 10Base-T/100Base-TX – RJ-11 , 1.0 x Modem – Phone line – 4 pin USB Type A , 1.0 x Network – Output – Mini-phone 3.5 mm , 1.0 x Headphones – Input – RJ-45 , 1.0 x IEEE 1394 (FireWire) – VGA – 15 pin HD D-Sub (HD-15) , 1.0 x Docking / port replicator – Mini-phone stereo 3.5 mm , 2.0 x Microphone , 1.0 x Display / video

OS Provided: Microsoft Windows XP Home Edition

Laptop battery

Technology: Lithium ion

Installed Qty: 1.0

Mfr estimated battery life: 6.5 hour(s)

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CPU: Intel Core 2 Duo

CPU clockrate: 1,8GHz

Display: 15,4″

Resolution: 1280×800

HDD: 120 GB

Spindle speed: 5400 rpm

SSD: No

Memory: 2048 MB

GPU: Intel GMA X3100

Dedicated GPU RAM: No

USB ports: 3

FireWire ports: 1

PC Card: No

ExpressCard: Yes

DVI: No

HDMI: NO

S-Video: Yes

Bluetooth: No

WLAN: 802.11a/b/g

LAN: 100Base-TX

Optical drive: DVD±R(W)

Weight: 2,7 kg

Manufacturer product code(s): VGN-FZ19VN / VGNFZ19VN

Laptop battery

Battery life: 4,5 hour(s)

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