(Clocked at 2000MHz, 1MB L2 cache, 667MHz system bus frequency) chipset Intel PM45 Standard memory 1024MB Hard disk capacity 160GB SATA 5400rpm CD-ROM drive DVD burner graphics chip, the NVIDIA GeForce 9200M the GS discrete graphics processors from Intel (Intel) Core Duo T3200, 256MB widescreen display 16TFTLCD, the standard resolution of 1366 × 768 network connections / wireless-integrated 10/100M Ethernet LAN, 802.11b / g Wireless LAN extension interface 2 button touchpad with scroll bar does not support the fingerprint identification, 3 × USB interface, HDMI, RJ11, RJ45, voice input, voice output hole, DC power jack, security keyhole, 1 ExpressCard Battery 6-cell lithium-ion battery Weight (kg) 2.75 operating system DOS features BcenterView super bright LCD widescreen Built-in 5 in 1 card reader, webcam price ($) 4500
Edit Comment:

HP CQ60-114TX uses the T3200 with 9200GS alone significantly entry-entertainment combination, other ways, too remarkable to be able to buy a $ 4,000 price of the latest 16-inch widescreen models, the cost is quite good, and interested friends can contact the business, Phone: 13666612172, Contact: Yan Lin. Article sourceCompaq Presario cq60 battery

Flash SPEEDLITE 600EX-RT is Canon’s flagship flash Flash Index 60, at the same time as the large amount of light flash charging time is short, the stability of the continuous flash. Not only have to flash high durability, and to further improve the reliability of the power contacts. Flash coverage to the corresponding lens focal length 20-200mm Perspective (when using wide panel corresponds to 14mm), covering a wide range of commonly used lens. Flash SPEEDLITE 600EX-RT outside of the optical pulse transmission using radio transmission. Multiple flash SPEEDLITE 600EX-RT used in combination, can use the 2.4GHz frequency band radio for wireless control. Use of the optical pulse transmission way different non-directivity of the radio, place a slave flash such as more freedom, and can transfer distance to expand to twice the optical pulse transmission of about 30 meters, able to achieve than the optical pulse transmission is more abundant the flash photography. The official offer: $ 629.99
Flash 600EX-RT and the Speedlite Transmitter ST-E3-RT powerful, waterproof design, with a clear LCD screen can easily adjust the parameters. Speedlight 600EX-RT uses four AA batteries. The official price of $ 470.
The new wireless file transmitter and connect the camera image files can be sent to the specified device. Corresponding to the new IEEE802.11n standard, a substantial increase in transmission speed. And have automatic re-sending, even if the communication barriers can automatically restore the connection did not send file. In addition, when using multiple cameras, the Wireless File Transmitter for high-precision time synchronization, instant retrieval of other cameras shooting from different angles the image, use the timeline to be able to easily manage the Images. In addition, the wireless file transmitter to send images do not need to read data from the recording medium, the camera is placed far away remote shooting very convenient. Put the camera height overhead, or unable to close the subject of sports and wildlife photography. The official offer: $ 849.99.
Canon GPS receiver GP-E2, it is a compact, light weight, high-performance hot shoe GPS device, ideal for outdoor photographers. It is compatible with the EOS-1DX, Canon EOS 7D and EOS 5D Mark III. GP-E2, including longitude, latitude and altitude data, and shot direction and information to increase added to the photo EXIF ​​information. The official offer: $ 380.
The Canon BG-E11 battery grip is to improve the stability of the vertical shoot the EOS 5D Mark III dedicated the new Battery Grip. In addition to vertical shoot using the shutter release button is also equipped with multi-function control button and multi-functional custom buttons can be achieved with the same horizontal position of the operating sense. Battery box and handle internal install one or two LP-E6 lithium batteries, or install six batteries, can be assured a long shot. And the shell is made of the same magnesium alloy and the fuselage. Through the implementation of the various parts of the sealed, with waterproof camera equivalent drop dust properties. Very effective to use vertical shoot more portrait photography and sports photography using large-diameter telephoto lens.
The Battery Grip BG-E11 changed the direction of insertion of the battery. The battery transverse direction into the dedicated battery compartment were new ways to handle a whole than in the past fine, easier to grip, even for a long time gripping fingers are not easy to fatigue, the thumb can easily touch the Quick Control Dial, easy to operate. In addition, to install the battery box and handle as a precondition to reconsider the camera constructed, improved ease of use for the camera battery compartment cover is easily removed to improve the hinge axis. The official offer: $ 400.

ACER battery from all-batteries.co.uk

ACER TravelMate 2302LMi battery Specs:

Chemistry : Li-ion
Rating : 4400 mAh, 14.80V
Color : Black
Net Weight : 432.00(g)
Dimension : 211.40 x 70.60 x 22.30 mm

Original battery model:

ACER 4UR18650F-1-QC192, BT.T5003.001, BT.T5003.002, BT.T5005.001, BT.T5005.002, BT.T5007.001, BT.T5007.002, BTP-AS1681, LC.BTP03 .003

Original model:

ACER Aspire 1410, Aspire 1411, Aspire 1411WLMi, Aspire 1412, Aspire 1412LC, Aspire 1412LCi, Aspire 1412LM, Aspire 1412LMi, Aspire 1412WLMi, Aspire 1413, Aspire 1413LC, Aspire 1413LM, Aspire 1413LMi, Aspire 1413WLMi, Aspire 1414, Aspire 1414L, Aspire 1414LC, Aspire 1414LM, Aspire 1414LMi, Aspire 1414WLCi, Aspire 1414WLMi, Aspire 1415, Aspire 1415LMi, Aspire 1640 Series, Aspire 1640LC, Aspire 1640Z series, Aspire 1641LM, Aspire 1641LMi, Aspire 1641WLMi, Aspire 1642WLMi, Aspire 1650 Series, Aspire 1651NWLCi, Aspire 1651WLCi, Aspire 1651WLMi, Aspire 1652WLMi, Aspire 1654WLMi, Aspire 1680 Series, Aspire 1680WLCi, Aspire 1680WLMi, Aspire 1681

How to take care of my ACER TravelMate 2302LMi battery？
(1) Notebook battery without having to run out of the power after charging
Notebook batteries are lithium batteries, lithium ACER TravelMate 2302LMi batteries, run out of battery again for a long time filled with do not have any role, or even harmful. Because lithium does not exist in the so-called “cache effect”, only the early nickel batteries have this feature;

(2) When the power is connected, do not disconnect the battery while connecting the DC power supply battery and does no harm, because the battery is fully charged, will not accept any electricity into the electricity will all turn directly to the notebook’s power supply system. But when the laptop high-speed operation, the internal overheating is best to remove the battery.

(3) how to correctly charge laptop battery
Should avoid the battery is run out of run out of recharge, because this will give the battery a lot of pressure resulting in damage. A more feasible approach is to charge about 20-30% of power remaining.

(4) long-term use of the ACER TravelMate 2302LMi battery How do I save?
The laptop battery is put photoelectric saved or should be filled with the power to save? Put the photoelectric long-term preservation of the batteries will lose activity, and even lead to the control circuit protection self-locking and can no longer use fully charged, long-term preservation will bring security risks, the best way to save is the will power to about 40% and then stored in a cool, dry place, of course, the best month to take the battery out with time, can guarantee the battery good state of preservation, but not so the battery is completely lost and damage the battery.

ACER TravelMate 2302LMi battery from：http://www.global-battery.co.uk/laptop-batteries/acer-travelmate-2302lmi.htm

Taking centre stage is a quad-core AMD Llano A8-3520 CPU. It runs at 1.6GHz, although AMD’s Turbo Core function means it can increase this to 2.5GHz for added performance in single-threaded applications. That, along with its 6GB of RAM, meant it completed our multimedia benchmarks with an overall score of 40. Hardly record breaking, but it’s still fast enough for any common application. If you use multi-threaded applications, such as Adobe Photoshop, you should notice a significant boost over a dual-core processor when using this laptop.

HP Pavilion G6 Specs:

Display
Display size 15.6 inches
Maximum resolution 1366 x 768

Processor
Processor class Intel Core i3
Processor model 380M
Processor speed 2.53 MHz
Number of Cores 2
Cache size 3072 MB

Graphics
Graphics Type Integrated
Integrated Graphics Chipset Intel
Integrated Graphics Chipset Model Number HD

Memory
Installed memory 4096 GB
Memory technology DDR3

Storage
Hard Drive Type Hard Disk Drive
Total HD Size 500 GB
Hard Drive Speed 5400 RPM
Number of hard drives included 1
Other Storage SD/MMC Card

Networking
Ethernet Type 10/100 Mbps
Wifi Type 802.11 n/b/g

Interface Connections
Number of USB 2 Ports 3
Video Interfaces HDMI

Dimensions
Weight (min) 5.3 pounds Weight (with accessories) 6 lbs
Width 14.9 inches
Depth 9.8 inches
Height 1.3 inches

Software
Operating system Microsoft Windows 7 Home Premium

Other Features
Power supply: 6600mAh, 11.1V HP Pavilion g6 battery
Built-In Speakers Stereo

The processor has integrated graphics, but that hasn’t stopped HP from adding a dedicated card. The Radeon 7450M has 1GB of video memory and can work in CrossFire mode with the CPU’s onboard GPU to create a surprisingly powerful gaming combination. In our Dirt 3 test, the G6 managed a very smooth 38.1fps, so you should be able to play modern games at reasonable levels of detail.

We expected its battery life to suffer because of its processor and graphics card, but the Pavilion G6 coped surprisingly well, and nearly managed six hours away from the mains. You’ll need to stick to light tasks, such as image editing, but unlike other quad-core laptops we’ve seen, there’s still potential for working on the move.

Screen and Speakers

The Pavilion g6 has a 15.6-inch display with a 720p (1366×768) resolution and a glossy surface. This is a typical display for a budget notebook. Brightness is satisfactory; contrast is low and color reproduction is a bit cold – some colors look washed out. Viewing angles are poor from above and below, which is expected since this is a TN-type panel. The glossy surface helps contrast but introduces reflections and is difficult to clean.

There are two stereo speakers located below the palm rest with Altec Lansing branding. Despite HP’s history of using good Altec Lansing and Beats Audio speakers, these are some of the worst I’ve heard on any laptop, netbooks included. The sound is muffled and bass notes clip the sound.

Keyboard and Touchpad

The Pavilion g6 has a full-size keyboard but no separate numeric keypad. The square flat-topped keys have a chiseled base to create extra space between them. The keyboard feels and sounds cheap; the keys make a slight rattling sound when pressed. Tactile feedback is substandard; it doesn’t exactly encourage typing. Surprisingly the keyboard has a solid base with no flex. The matte texture of the keys will most definitely wear shiny over time; I saw it happening on our review unit over the span of a week. Overall the keyboard gets a passing grade but that’s all; the keyboard on higher-priced HP Pavilion notebooks is much better.

The touchpad is good for a consumer notebook. The dimpled surface has too much texture for my taste but is certainly better than having an all-glossy surface from a usability standpoint. The buttons are quiet and unobtrusive which is always welcome and how touchpads should be; inexpensive consumer notebooks are notorious for loud, clacky touchpad buttons.

Compared to the much more stylish HP Pavilion DV6, the G6 is something of an ugly duckling, albeit one with significantly more powerful components inside. However, when it comes to real-world tests, there isn’t very much separating the two. If you have multi-threaded applications that can make the most of its quad-core processor then the G6 may perform better, but the cheaper DV6 seems a better buy overall.

Laptop review from : http://www.all-batteries.co.uk/products-news/HP-pavilion-g6-review.htm

What is your next notebook will? Focus on thin and light portable users, there may be a part of the consumer is the Apple Air and the ultra-pole of this tangled among the two. Apple Macbook Air quality is still the majority of ultra-this catch-up goal at the present stage, but part of the ultra-pole, this has been revealed in terms of price advantage, another part of the ultra-pole of this is found in industrial design, a number of innovative elements .
With the ultra-pole of this large-scale plot to spread the “gun deed goes unpunished”

remark to the Apple MBA (Macbook Air for short) to listen to, and seems to have started becoming more and more appropriate. Apple MacBook Air has been no one to match industrial design, the slim body of proud of itself, it now appears, however, it became a lot to contend with the opponent’s “thorn in the side, first half of 2011 after the market The number of the arrival of the ultra-this is, indeed, the Apple MBA to deeply understand a longer feeling of loneliness.
Super pole this appears to break the bottleneck of a traditional notebook machine modeling and user experience, with almost the same with the Apple MBA slim size, portability, and to enhance the performance of the whole, slowly and 17 in. Apple’s classic MBA par contend situation. Although slightly paranoid fruit powder has been disdain the comparison with other ultra-pole cross as many different angles, jump out of the subjective circle, another angle to look at the super pole this is not necessarily a bad thing.
If you are a loyal fruit powder, undeniable in the bones of the MBA is a soft spot, even with a small bias. In fact, I personally think that the opponent to catch up is to stimulate the re-power, since the Apple MBA has become the object of public super-pole of this scrambling to catch up, you also need to look back at the gang of his opponent’s strength, to know ourselves in order to stimulate more innovative.
Super pole the momentum to grow more and more, Apple’s MBA is also often as a target of challenge, especially in thickness, material, super pole has reached a high level of industrial design. However, through the pole of this contrast with the ultra-mainstream market, which Dell XPS 17 airframe materials, workmanship excellent performance, and its body with the part of the features of Apple Air do not have. Here’s a comparison to see it!
First two notebook on with the appearance of contrast, you can see the Dell XPS 17(Dell XPS 17 battery) with Apple’s Air in the shaping of the metal casing very texture of the Dell XPS 17 cover with anodized aluminum shell, while the Apple Air is the aluminum-magnesium alloy. Both wedge-shaped mold with a thin body thickness, and therefore have good protection on the screen. Hollowed out on the roof of Apple Air with backlit LOGO looks hyun more sturdy, but the Dell XPS 17 closed metal material LOGO than Apple Air, of course, the aesthetic appearance is different.
Two notebooks with 17.3-inch display screen contrast, the Apple Air’s borders wider, while the Dell XPS 17 no border compact design allows larger viewing area, the XPS 17 compact body is a major reasons. Let’s look at the screen material, covered by the Dell XPS 17 is a well-known Corning Gorilla gorilla glass have excellent performance, the hardness of the screen and scratch resistance.
Contrast picture from this screen below, we have a seen on the small circle the size of the XPS 17 than Apple Air, armed with relatively more convenient. Again compare the body thickness and weight, The Dell XPS17 thickness range 6-18 mm, the whole weight of 1.36kg, while the Apple Air thickness range 3-17 mm, machine weight of 1.35 kg, the thinnest Apple Air dominant However, the thickest place is basically the same machine are slim and lightweight portability.
Individuals have always liked the Apple Air, Unibody forming one work process, the greatest benefit of this design lies in the notebook overall shaping effect is more outstanding, but also can guarantee the robustness of the fuselage. In fact, the super pole this constant pursuit of light at the same time, with a reinforced steel frame, sturdy and reliable body is very necessary, about 1 cm if the body fragile million notebook may be at stake.
Understanding of the Dell XPS 17 we learned that early in the design engineer has been fully taken into account robustness, totally do not begrudge the cost of materials used, the market very rare process of carbon fiber, carbon fiber, this new profiles is characterized by high hardness, light weight. Apple Air has been strong enough, but the strength and toughness of carbon fiber is twice that of aluminum-magnesium alloy. More used to compare high-end areas, such as: automotive industry, F1 racing and aerospace aviation sector.
If you are a workaholic, notebook open must not be less than eight hours, put a higher demand this lightweight body cooling, First, as the body design is very compact, thermal windows can not be a large open design, thin thermal window edge for a long time at high temperature hair condition, phenomenon may be deformed, and carbon fiber with high temperature properties, can effectively guarantee the strength of the thermal windows.
Dell XPS 17 uses a bottom opening into the wind, the thermal design of the wind, and to prop up the bar pad body rear, to ensure smooth air intake, in line with the best heat exchange duct design, and the bottom of the material change on the carbon fiber composite materials, the bottom of the easy opening heat, strength, heat and weight of the triple needs have been met, although the higher cost of carbon fiber, but in order to enhance the whole a good experience, well worth it.
Regardless of the hardware configuration how tough, how exquisite shape, how steady work, in fact, consumers are often most concerned about the price. Price is not close to the people only, so, too, will lose the support of many users, even if its configuration powerful, exquisite workmanship sound very excellent product.
The same 128GB SSD configuration, the two machines the price is almost the same, then look at the 256GB SSD configuration, price comparison, the gap appeared. Dell XPS 17 official price of 10,999 yuan, while the official MacBook Air is priced at 12,498 yuan. In this way, the result is very obvious, the price of the Dell XPS 17 higher than the MacBook Air.
Edit Summary:
To appreciate, from the appearance on for the industrial design of the Dell XPS 17 and Apple MBA and Dell XPS 17 with more beautiful borderless screen size, occupy a certain advantage, if the inside of the Apple MBA border becomes narrower believe there will be a good visual experience.
Materials used two notebooks do very carefully, classic Apple MBA in one molding process, the Dell XPS 17 addition on the top cover is not lost in the MBA, the bottom of the fuselage of materials to be used more luxury some, the use of advanced carbon fiber composite materials for the entire body, the body’s resilience and the bottom of a solid degree of thermal stability and portability provide effective help.
Finally, mention, if not all the way down the fruit powder, a halfway decent user most of the Apple operating system built some good experience and a rich set of features will take some time to learn and discover, for example, multi-fingered operation and not who one up will be the master, coupled with insurmountable domestic online banking plugins MBA is not well supported, a lot of people that use the Apple MBA will also consider to install Win7 dual system or virtual Win7. Instead, Windows 7 or Windows operating system we play small already very familiar with, and basically most people can easily get started.
Mentioned above are purchased need to consider before the election this can not be too impulsive follow suit, if you have the courage to overcome and to challenge Apple’s MBA is insufficient, the Dell XPS 17 is also a very good choice.

Materials used in the body in order to extend the high level of security of the Lenovo X-series body, the X220 still uses a lot of magnesium alloy top cover the outside of the bottom shell all the raw materials of high strength, which makes the machine in a closed the state’s safety performance is very good. Test the palm push hard on its roof, only a slight sinking phenomenon, indicating that the top cover of the machine can play a better protective effect on the screen. In addition, we see in the figure below, and before X220 power jack in the fuselage rear, this design also makes a more relaxed about the interface arrangement.

Difference in the proportion of the screen of Lenovo X220 and X201, X220 for the user to configure a 16 9 12.5-inch matte screen, with the trend and a change in demand, 16 to 9 screen ratio is also characteristic of the latest generation of commercial products, while The matte screen with a matte texture of the border can be excellent in use to deal with complex lighting conditions, provide users with a superior visual experience. In addition, the X220 is not configured to a fixed screen closed buckle, which makes a lot of customers are not accustomed.

Due to changes in the proportion of the screen, the Lenovo X220′s body with the X201 compared to the wider, which makes the premise of the same configuration in the ThinkPad series of iconic full-size keyboard, the IBM ThinkPad X220′s keypad border wider for better protective. Use buttons still feel good at the same time, the keyboard area compared with older products, little change, just change the shortcut key style in this part of the aircraft can be seen from the comparison chart for the function key area Ese and Delete keys to emulate T-Series products times the processing. The same mold proportional to the change, the original is not wealthy part of the palm rest becomes narrower, which also forced the X220 to retain the touchpad at the same time, one designed to cancel the individual keys in order to achieve the purpose of saving space , and because the trackpad widened because of the actual effective area becomes larger.

To provide users with Lenovo ThinkPad X220 in the interface area a total of three USB 2.0 ports (one support to shut down power supply), a DP interface, a VGA port, 1 RJ-45 connector, an audio / Mike composite interface, a Express card slot and a card reader, these interfaces are quite reasonable in layout between each port will not affect the same time use because of too close, however, the network interface on the right side of the fuselage approach may have a right mouse user impact.

The IBM ThinkPad X220 using the Intel Core i5 2520M processor, the processor based on the latest 32nm process technology, is released by Intel in 2011, native dual-core 32nm processor clocked at 2.5GHz, the processor’s L3 cache 3MB, supporting HT Hyper-Threading, Turbo Boost Technology, with the dual-core processing four threads, thermal design power TDP of 35W. ThinkPad X220 and not equipped with discrete graphics, but use the built-in HD 3000 Core Graphics Core i5 2520M processor as a graphics processing unit, the graphics cards based on 32nm process technology, manufacturing, with 12 execution units (EU), the reference frequency 650MHz, dynamic acceleration frequency up to 1.3GHz.

The IBM ThinkPad notebook comes standard with a single 2GB DDR3 1333 memory and a 320GB 7200 rpm hard disk storage accessories. In our experience, this hard drive speed is high, but the 320GB of storage capacity in the general configuration of the environment of the 500GB hard drive is relatively small, which is even more evident for users who need to store movies or pictures. 2GB of memory capacity in a 32bit system to get a better run effect, but if users need to run a large load of software or need to use a 64bit system, we recommend the user to add a memory in order to obtain better overall performance.

The IBM ThinkPad X220 and X-Series the previous generation X201 compared to, have a larger change from outside to inside. Changes in the body specifications, it is clear that the proportion of the screen to change the user the greatest impact, I see a lot of people complain to display a screen when you look at the page content is reduced in related forums, but similar the topic as early as some controversy in the mainstream size of the original screen began to change from 4 to 3, the final proved for their pay after a process of adaptation to slowly come to accept, but in fact 16 to 9 screen ratio As early as in the entertainment this become the “standard”, so the problem does not directly affect the potential users of the desire to buy.

Starting from the perspective of practical application, the Lenovo X220 has a lightweight portability at the same time have a better processing performance than the previous generation, the previous paper we have through the contrast in the form focuses on the aircraft’s performance in graphics processing and office applications performance, you can see through these office performance improvement, but modest, and the substantial progress of the graphics performance X Series notebook has since taken off the definition of office-specific models, with its test demonstrate the performance enough to demand better support users to play high-definition audio and video or run a small load of 3D games, with some entertainment. Taking into account the relatively good temperature control of the aircraft, coupled with good keyboard feel of the ThinkPad line of products beyond the heavy load operation, can be of good comfort, in addition to an extended period of time on his lap.

Reviews from： http://www.sales-battery.com/articles/Lenovo-ThinkPad-X220-Review.htm

Although the type of RAM is very much, but these memory still has a lot of the same place in the mechanism of this article will be divided into several parts of introduction, the first part introduces the HSTNN-IB0X Battery SRAM and asynchronous DRAM (asynchronous DRAM) chips, later chapters described a mechanism is more complex FP, EDO and SDRAM, of course, also including RDRAM and SGRAM. Them with your point of view contrary, with the technical aspects of

Storage works:

In order to facilitate different levels of readers can be a basic understanding of this article, so I have first to introduce a lot of users are aware of things. RAM’s main function is to store code and data for the CANON battery charger CPU to call when needed. However, these data are not so simple like bag Sheng meters, more like a library using a grid of shelves to store books, not only to put also be able to accurately call out when needed, although the books but each This book is different. The same is true for RAM, memory, and are representative of the stored code 0 and 1, but different combinations of different data.

Let us back to the shelves, and, if there is a bookcase on the grid lines 10 and 10 (each row and each column has 0-9 numbers), and 100 HP Compaq NX6105 Battery books to be stored inside, then we use a line number + column number will be able to determine the location of a book. If you know that this book number 87, we first lock the line 8, and then find the 7 will be able to find this book. In the RAM memory also uses a similar principle.

Now let’s go back to the RAM memory for the RAM memory data bus is used for incoming data or outgoing data. Storage space in the memory if the previously mentioned book storage shelves, like certain rules defined by this rule to the data stored in the corresponding position in the memory, and this positioning is necessary rely on the address bus. For the CPU, RAM, is like a long a lot of thin spaces, each space has a unique address corresponding. If the CPU you want to call data from RAM, it first needs to send to the address bus address data location to access data, and then wait several clock cycles after the data bus will transfer the data to the CPU. The following diagram can help you a good understanding of this process.

Storage principle

Above a small dot on behalf of RAM, storage space, each one has a unique address lines connected with it. When the address decoder receiving address data sent to the address bus, data location, it will want to call this data positioning Handheld Cell Phone Jammer CPU, data bus, then the data sent to the CPU.

The examples cited above, the CPU time in a row of data knowledge access one byte of data, but in the real world is different, usually the CPU every time you need to call 32bit or 64bit data (which is based on a different computer system bit wide data bus). If the data bus is 64-bit words, the CPU will access to the 8 bytes of data in a time each, or access to a byte of data, 64bit bus will not be displayed any advantages, women work efficiency will be much lower.

From the “line” to “Matrix”

If the RAM for the Universal Solar Charger for Laptop CPU is only a “line” does not reflect the actual operation. If the situation really is the case, in the actual manufacturing of the chip, there will be many practical difficulties, especially in the need to design high-capacity RAM. Therefore, a better method to reduce costs is the “space” to store information is arranged as many lines of – “space” corresponding to the position of a bit storage. In this way, if you want to store 1024 bits of data, then you just use the 32×32 matrix will be able to achieve this objective. Obviously, a 32×32 matrix is ​​more compact than a 1024bit line equipment, it is also easier to achieve.

Know the basic structure of the RAM is what we have the following talk about storage bytes What is the process: The above schematic shows only the most simple state, that is, when the memory has only one Apple a1175 Battery pack RAM chips. X86 processor, it issued by the address bus has 22 address encoding of binary digits – 11 of which is the address line 11, column address, which is separated by RAM address interface. The row address decoder (row decoder) will first determine the row address and column address decoders (column decoder) will determine the column address, so that we can determine the location of the only store data, then the data will be through the RAM data interface to the data transmitted to the data bus. In addition, it is important to note that the RAM internal memory is not a square matrix is ​​the number of rows and columns are not the same – the line number less than the number of columns. (We will talk about why this is so in the discussion of the DRAM process)

SRAM is the static RAM (static random access memory) “referred to, is so named because not disappear when the data is into it (with DRAM dynamic random access memory is different, the DRAM must be kept within a certain time to refresh in order to maintain the stored data). An BG-E8 Battery Grip SRAM cell is usually 4-6 transistors, when the SRAM cell has been given the status of 0 or 1, it will maintain this status will change or disappear until the next time it is given a new status or power failure. The relatively fast speed of SRAM, and more power, but store a 1bit the information needs 4-6 transistors manufacturing costs are too high (the DRAM as long as a transistor can be achieved).