CPU level 2 cache capacity

CPU Cache (Cache Memoney) is located in between CPU gateway mx6438 laptop cpu fan and memory of the temporary memory. Its capacity than the memory is small, but exchange faster. The data in the buffer, only a small part of memory data, but it is a small part of the short time CPU will visit, when the CPU call a large number of data, it can avoid the memory cache call directly from, so as to speed up the reading speed. Thus it can be seen, the CPU to cache, it is a kind of efficient solutions. In this way, the whole internal memory (cache + memory) becomes a cache of both high speed and memory of the large capacity storage system. The cache to CPU performance influence. Mainly because of the CPU's data exchange between order and CPU and cache the bandwidth of the cause.

The working principle of the cache, is when the CPU to read a data, the first from the cache find, if found, immediately read and gave CPU processing; If not found, with the relatively slow speed from memory and CPU gateway mx6440 laptop cpu fan processing to read, but at the same time, the data in the data block to tune in to the cache, can make later to block the data read from the cache, don't have to call memory.

It is such a read mechanism, make the CPU reads cache hit is very high (most of the CPU can be up to 90%), that is to say, the CPU next to the data read 90% are in cache, only about 10% need to read from memory. This will save the CPU directly read memory time, also make the CPU reads data without waiting for basic. Generally speaking, the order of the CPU reads the data, is first cache, after memory.

The earliest first CPU gateway mx6447 laptop cpu fan cache is a whole, and capacity is low, Intel Pentium era from the start, the cache are classified. At that time the CPU integrated in the kernel of cache has not enough to meet the needs of the CPU, and manufacturing process limit, also cannot greatly improved the capacity of the cache. So there was a integrated in the same block with CPU board or on the main board of the cache, at this time, the CPU kernel integrated cache, called level cache. And external called level 2 cache. Level 1 Cache, still score according to the Cache (Data Cache, D - Cache) and Instruction Cache (Instruction Cache, I - Cache). Respectively used to store data and execute these data's instructions, and both can also be CPU access, reduce the contention Cache caused by the conflict, improve the efficiency of the processor. Intel Pentium 4 launched in processor, there are also a kind of level tracking cache, capacity of 12 KB.

With the development of the CPU manufacturing process, level 2 cache can also easily integrated in the CPU kernel, capacity are also ascending year after year. Now again with integrated the CPU internal or not to define a, level 2 cache, has not exactly. And as a level 2 cache is integrated into the CPU kernel, the previous level 2 cache and CPU gateway mx6448 laptop cpu fan big gap crossover situation was also change, at this time with the same in the main frequency speed work, can for CPU provide higher transmission speed.

Level 2 cache is one of the keys to CPU performance. The CPU core the same circumstances, increase level 2 cache capacity, can make the performance improved. And the same core CPU of high and low end points, and often is in level 2 cache on the difference. Thus it can be seen, level 2 cache for the importance of CPU.

CPU in the cache find useful data are called "hit", when no CPU gateway mx6450 laptop cpu fan cache the data (then called not hit), the CPU to access memory. Theoretically, in a have a level 2 cache CPU, read the first shot 80% in the cache. That is to say, CPU level cache find useful data, accounting for 80% of the total data, and the rest 20% from level 2 cache read. Because can't predict accurately the will execute data, level 2 cache read from around 80% (from the level 2 cache read useful data according to the total of 16%). So, and data from memory will have to call, but this is a very small proportion of the. The higher the CPU, will also carry level 3 cache, it is to read after level 2 cache misses data design - kind of cache, in has level 3 cache CPU, only about 5% of the data from memory to call, further improve the efficiency of the CPU.

In order to ensure access to CPU gateway mx6453 laptop cpu fan has higher percentage, the contents of the cache should according to certain algorithm to replace. A more commonly used algorithm, is "least recently used algorithm" (LRU algorithm), it is a recent period of at least be visited out line. Therefore, the need for each line set a counter, LRU algorithm is the hit done counter reset, and other various counter add 1. When there is the need to replace, eliminated line counter attribute the maximum data line out. This is a kind of high efficient, scientific algorithm. The counter reset process, can put some frequent after call don't need the data out in the cache, improve the utilization rate of cache.

CPU gateway mx6629 laptop cpu fan products, the capacity of the basic level cache in 4 KB to 64 KB between, level 2 cache capacity is divided into 128 KB, 256 KB, 512 KB, 1 MB, 2 MB, etc. Level 1 buffer capacity, each between products differ not quite, and secondary buffer capacity, it is the key to improve the CPU performance. Level 2 cache capacity of ascension that is determined by the CPU manufacturing process, capacity increase will inevitably lead to the increase of the number of CPU internal transistor, in limited CPU area integrated more cache, in the manufacturing process of the higher demands.


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http://batterychargerview.blog138.fc2blog.net/blog-entry-384.html

Ink jet printer to have suitable working environment

Ink jet printer just buy back day,asus u50f series laptop cpu fan everybody will be talking about it with care, everyday want to wipe ash, when using carefully, need not when also can with beautiful table cloth make it protected; While not a few days, many people have no protection ink-jet printer, little imagine ink-jet printer in the lack of "love", its working performance are also "gradually with gradually low". We should give the inkjet printer to find a "feng shui good" position put, also spray play a suitable working environment.

1, do not let the spray play and host sharing power
The author suggest you users, in not as a last resort, had better not let inkjet printer source is connected to and host connected power supply socket, this is because now the market sales of ink-jet printer, and not every a computer users must use equipment, now there are many new ink-jet printer model often do not have a power control switch, only a jack; So, if you use cable will printer connected to and host sharing power board, switch on the power socket, ink-jet printer will also connect the power, and the asus g72gx series laptop cpu fan hypothesis and we don't want to use ink jet printer words, can cause the wasted. Moreover, ink-jet printer in every opening or closing the power supply, printer will be cleaning the print head and initialization printers, ink conveying system for filling ink, of course, want to waste some ink, it's "a drop of ink a penny" ah, Perhaps you will say, ink-jet printer have energy saving protected mode ah, but often frequent switching power supply, will often start printer, so it is easy to cause internal mechanical and electronic components loss. So will ink-jet printer power and the power of the computer connected to separate different outlet, need to use inkjet printer when it will open, more accord with environmental protection requirement and energy saving ideas.

2, operation don't play too close from spray
Because of ink-jet printer ink, may have to human body potential body damage, even though you may not have direct contact with the ink jet printer's ink, but in the print process will play ink injection may have volatile phenomenon, if ink-jet printer placed far from too close to the user, or the operator in the use of ink-jet printer when the acer aspire 1360 laptop fan printer too close, it is very easy to suction ink volatile gas, used for a long time rate, the human body to produce damage is not ignored. Therefore, the author recommend that users put printer position, you should consider safety, we'll consider the convenience of operation.

3, and spray play connected signal wire cannot too long
As you all know, ink-jet printer is through the signal cable connected to the computer parallel port or USB port, if ink-jet printer and computer too far away from words, so the printer signal cable have be distorted or serious tensile risk, is like this very easy to make ink-jet printer fittings of internal wiring disconnected, and the ink jet printer itself is a weak signal transmission, once outside slightly interference will not work normally, this is why often have friends reflect printer in-and-out reason, in fact, this is because print cable poor contact and cause small fault. In addition we must pay attention to acer aspire 3620 series laptop fan, and spray play connected cable also do not want too long, and will cable best insert to the band switch power board, and the print cable inserted into the power supply in the interface, then open the switch on the power board, if everyone directly in the charged will print cable plug in words, current moment impact may damage the printer circuit.

4, to spray dozen work space to big
Now as household consumption level unceasing enhancement, many users are home to buy computer peripherals more up, but with the increase of computer peripherals, the computer will be many of those peripheral surrounded more and more close, and between peripherals in space take up on will inevitably be conflict, the occupied space between peripherals will gradually reduce. And ink-jet printer as a result of "shape" particularity, inkjet printers usually have two into the paper mouth, one is automatic, is a manual, located in the upper part of the body and the rear. The paper mouth has two direction, above and the front, regardless of which kind of design, need to take up larger space, or in the process of paper is acer aspire 4750 series laptop fan prevented, it is easy to appear paperboard even damage phenomenon of the machine. Ink jet printer using extrusion ink way to print the picture, if printer by collision, can lead to ink head shift, when printing error increased chance of many. By this token, want to own work more conveniently, must give spray play leave a bigger space; At the same time, don't let the scanner, external CD writer, TV boxes and other peripherals near the ink-jet printer, because these equipment in the work to the printer when there is interference.

Retrieve a lost already a long time of input method status bar

high quality lenovo laptop keyboard, cheap lenovo keyboard, buy lenovo laptop keyboard at www.good-keyboard.com .

 1. The most basic recovery method, open the lenovo thinkpad t410-2538 laptop keyboard control panel of the "regional and language options", select "language" TAB, click the "detailed information", in the opening of new tag click the language bar "button (if the language bar button is grey, directly to the third step), select the" in the table shows the language bar "and" in the task bar shows that other language bar icon ", this is the language bar will be there, but this method may restart the system after failure.

2. Uninstall all non-mainstream input method, including Microsoft pinyin input method (sogou and Google except), and then to the operation of the first step.

3. Through the start menu operation "ctfmon" the order, restart your system lenovo thinkpad t410-2539 laptop keyboard, you will find that input method icon to appear, and all installed input method all will be shown, but only can't use keyboard in different switch between input method. Solution is to right-click the input method icon, and then in turn click the "Settings" (of the popup Windows and the first step is the same), "key Settings", "change the key sequence" button, and then will "switch input language" and "switching keyboard layout" check box ticking, finally according to individual used to set the left hand or right hand Alt Alt, click the "ok" button to exit can. In the text the service point "advanced", in "enable senior text service" before a hook.

4. If the third step operation can't succeed, in fact, one of the most simple way. It is through the start menu operation "internat" the order, it is Windows and Windows me standard input method program, the task bar the lower right corner of the areas of activity.lenovo thinkpad t410i laptop keyboard Input method status bar out not to also can use Chinese input method.

5. For Microsoft pinyin input method cause problems, solve up more troublesome. If you don't want the input method, then please run regedit command open the registry, positioning to HKEY_LOCAL_MACHINESOFTWARE
MicrosoftWindowsCurrentVersionRun, delete IMJPMIG8.1, PHIME2002ASync, PHIME2002A three key value. Restart your system effective. At the same time, attention, ctfmon is not to be deleted. If you want to keep Microsoft pinyin input method,lenovo thinkpad t410s laptop keyboard it is Microsoft next patch package to solve the problem it.

6. Virus problem, suggest to overall antivirus, and then to the above in addition to the fifth step outside of the operation.




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Display to display the best method

Now, people use computers more and more long time. In all day after in front of the computer, a lot of people in the evening will feel not hurts right here is there pain, or cause some diseases. About how to reasonably overall arrangement in front of the computer dell latitude e5400 laptop keyboard work, in order to avoid health problems, Russia clinical medical experts have proposed many effective suggestion.

Should 1, in front of the computer dell latitude e5410 laptop keyboard work is a sitting way of life, this means that the muscles in the work didn't get exercise. This kind of sitting way of life the most easy to let neck and back are damage. If the office personnel working arrangements unreasonable, the situation will be worse. The important thing is that the office worker should be installed adjustable display. This display after adjustment, can adapt to each person different physiological characteristics. Still can in any direction turning, its height and display curvature also can be adjusted freely.

Pieces 2, if display slightly to the left, will make on the left side of the neck muscle tight, and the right muscle gets stretch. This imbalance will lead to starboard head. So, the office computer display must be in accordance with the median line placed. In other words, display must be placed directly in the back of the keyboard dell latitude e5500 laptop keyboard, because the keyboard the centerline of the affirmation and display the centerline of the body and is consistent.

3 pieces, still have a bit very important, display can't install too high or too low. The starting point of the display line must be with your eyes remain at the same level. If the user must frequently see keyboard dell latitude e5510 laptop keyboard or the paper words, display the starting point of the line should lower point again.

4 pieces, to test whether display install it properly, you just need to do a simple test. First of all, remember display you will often see that, then close your eyes. Do a few times slowly head up and down. When the head motion to you feel comfortable position, standing still, open your eyes. If display installation have to appropriate words, your eyes just stopped before you write down in the point.

5 pieces, work must use paper must be placed on and computer display distance and height, Angle are all the same place. To do this, you can use a bench, but bench must be fixed in the display nearby, and keep your eyes on the same plane. If you want to play on the computer paper of the whole article, will paper put before the right place, or put on display and keyboard dell latitude e6400 laptop keyboard between the bench, this method will bring you a lot convenience.

Pieces 6, usually, in the work you have to frequently see first display, and look at the keyboard, and then back to display, so repeated, one day down, you will feel the neck hurt badly. In order to avoid this kind of situation, can install a suitable for their own keyboard. Recently, there have been many around the world about information output and input of new model has been patented. Among them, there are vertical placed in display next to the keyboard dell latitude e6410 laptop keyboard, and cone shaped the keyboard, the key on the keyboard is vertical design.

Pieces 7, even without these technical innovation, each computer can find a way to avoid the situation. Keyboard positioned Angle is less than the front end behind. And, the keyboard dell latitude e6500 laptop keyboard must be below the user's elbow, make the elbow folding Angle must have plenty of 90 degrees or a little more.

Intel cool translucent super this Nikiski TuShang to fit in

The super this this concept thoroughly before playing bad, Intel is still trying to a lot of emergency rescue measures. Concept super this Nikiski is Intel toshiba satellite a200-18m laptop fan to the Ultrabook camp on Windows eight times how to survive a thinking. In this year's CES conference, we have seen the half of his face is transparent glass guy the expense of the real, now, have foreign media got Nikiski true machine, and a experience, together to onlookers that piece of magic glass exactly what is the magical effect.

The integral design of the Nikiski did not follow the current super this try very hard to lose weight modelling, the compasses thickness, shape and line also does not have the special give prize place. However, it's keyboard the touch pad and palm Joe part is replaced by a piece of transparent glass, this design will definitely the first time attracted the eyes of you.

When used in the form of a normal with a notebook toshiba satellite a135-s4467 laptop fan, Nikiski transparent glass can be used as trackpad use, the reporter found that the trial operation feel too smooth, than the ordinary trackpad effect will send. And when Nikiski closed, the transparent glass and will play other functions.

Although do not know Intel in glass embedded inside what high-tech, but it except as a touch control plate, and at the same time, or a piece of translucent screen - with the Lord of the notebook screen to display the content. In the closed the computer condition, transparent glass can be used as a notice center use. Social network information, new mail, weather, calendar and so on all can see in this screen. The support touch technology, we also can directly in a transparent glass open shows links, browse news... Even can also play video (don't know can play anger bird).

After some experience, reporter conclusion: Intel toshiba satellite a15-s127 laptop fan lessons from the early flip the concept of smart phones, Nikiski with transparent outer glass by main force of screen display information of the concept and clamshell mobile phones in fact very much the same, only Intel courage more, put this logic reference to the notebook came up.

Nikiski won't production, it is just a concept products. Intel toshiba satellite a205-s5825 laptop fan will demonstrate to everyone, just super the future one possibility - notebook will become more kind, are more likely to use. In the future, we in the super this information on the way, perhaps with flat computer this kind of mobile equipment will be no different.

Intel plan two years half Medfield size

According to media reports, Intel CEO Paul autrey mani (Paul Otellini) in mobile communication world congress (MWC) talked about, Intel toshiba satellite a130 series laptop cpu cooling fan has as its mobile processor worked out a long-term plan for development, expected in 2013 will Medfield Atom Z2460 processor current 32 nm architecture reduction to 22 nm, by 2014, the further reduced to 14 nano.

According to Moore's law description, integrated circuit can accommodate transistors number average every 2 years doubled, according to Moore's law speed,toshiba satellite a135 series laptop cpu cooling fan the same efficiency of the chip every 2 years size can be reduced by half, or the same size of the chip every 2 years efficiency can be doubled, and plan of Intel processor reduced faster than Moore's law describes faster.

Promote processor size decrease rapidly an important factor is the next year FinFET technology plan, this technology can make a single transistor provide multiple gate function, this means that compared with the traditional equipment, a new type toshiba satellite a200 series laptop cpu cooling fan of transistor makes equipment calculation ability more powerful, need electrode number less, so is also higher space utilization, and at the same time, also means that even if the volume smaller, but chip function will be more powerful.

Although Intel has always been willing to revealed to the media microprocessor design behind the various technical details, but to the development planning had it all bottled up. Autrey, in the mobile world congress in response to a question once said toshiba satellite a205 series laptop cpu cooling fan, the mobile market development speed is much faster than desktop market, Intel's mobile market has just started, and nano chip will make Intel more and more close to silicon valley 10 nano theory limit. Autrey, said, Intel whether production PC machine or non PC machine, capacity can be satisfied, and he believes that Intel now sell chip than LG, samsung and apple use good chip. 

Gestures operation more simple notebook trackpad use profile

Now notebook hp g50 laptop cpu fan trackpad generally divided into two categories, one is the traditional single point touch operation touch control plate, the other is now more popular multi-point touch control plate, then will introduce you the two trackpad difference.

1, single point touch control plate

Notebook touch panel (namely Touchpad), looked from the structure that, touch panel is mainly composed of a piece of can induction fingers running trajectory in pressure sensitive plate and two button composition, pressure plate can control the hp g56 laptop cpu fan mouse arrow moves, and realize the click and double click the operation, two buttons is equivalent to the mouse button around.

Box-and-one more traditional trackpad design

Touch pad sensor is just a printed on plate surface fingers trajectory transmission line, realize touch function also must have the aid of drive and software system, one can only judge a touch point, if at the same time there are two hp g62 laptop cpu fan or more points were touch, he cannot make the right reaction. This trackpad simple operation, but can function of the realization of the too little, not suitable for complex operation use.

2, multi-point touch control plate

Common touch panel can only replace the mouse, some more complicated task operation must also cooperate with the keyboard to achieve. For this apple, asustek, HP and manufacturers, introduced a multipoint trackpad technology (namely Multi - touch). Multi-point touch panel is a piece of a transparent sensing medium touch panel, some panel also added the mouse left key function, and the traditional single point trackpad hp g70 laptop cpu fan similar. Through the fingers in the touch pad, simple and practical, and can completely replace the traditional mouse.

Box-and-one asustek super this touch control plate support multi-point touch

Multipoint trackpad can detect touch panel in different position place at the same time produce the multi-point touch or adjacent to touch, and for multi-point touch every point touch produce different signal. Thus multipoint trackpad has two aspects, one is the master control chip can simultaneously acquisition multi-point signal,hp g71 laptop cpu fan 2 it is to be able to judge every road finger touch signal significance, in other words is able to provide users with gesture recognition function, such as double refers to realize page larger or smaller, such as the Internet chat reading operation can be simple finish.

Through the introduce everyone to notebook these two trackpad had certain understanding, then send to you some of the corresponding use trackpad some of the basic operation methods.

1, lock trackpad:

Some users in the use of laptop keyboard typing,hp pavilion g61 laptop cpu fan sing will encounter trackpad area, causing unnecessary operation, so in use notebook when typing lock trackpad is very necessary. General lock trackpad way for shortcuts direct lock, general notebook will set a trackpad lock shortcut keys, and when not to use the laptop can close touch control plate.

Box-and-one notebook will have design close trackpad shortcuts

There are some characteristics of trackpad lock operation hp pavilion g72 laptop cpu fan, such as asustek super this UX21 when use if detection to the user's palm met trackpad and direct will touch area reduced, so as to achieve the purpose of reduce false operation, HP notebook products is in trackpad top left corner tap 2, can be successful lock trackpad.