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Almost all computer users have encountered the phenomenon of blue screen. Such phenomenon is a very common and hard to avoid. The occurrence of blue screen has different reasons, mostly are the software and hardware problems.

Software Reasons:

Most blue screen are due to software because software is not compatible with the system, such as video drivers, system files are missing, the installation of third-party software compatibility is poor, etc. And if you install some unknown computer operating system, it will increase the probability of blue screen happening.

Hardware Reasons:

Usually the unstable hardware will be the main reason of the computer blue screen; and most cases occur in both memory and hardware disk, or with two hardware-related accessories, as well as some of the graphics hardware failure can lead to blue error.

The common causes of blue screen are summarized as follows:

1. Bad memory or memory corruption leading to blue screen

Almost all high-speed data access operating are carried out in the memory during the system running. So if the memory is bad or damaged, the problems will appear in the data access system. And it is very easy to cause the system to blue screen or crash! Generally, the bad memory is due to excessive accumulation of dust inside the computer, or memory is not fully seated. If you have two memories, one of them can be pulled for testing. Or it’s for the hardware problem.

Solution: clean the dust inside the chassis, disconnect the memory, wipe with a rubber finger, and then re-seated.

2. Software Compatibility problems cause computer blue screen

If the incompatibility between the software and hardware might cause blue screen when installing the system recently, my advice is to install the CD-ROM drive (to be consistent with the operating system used) which was proposed during the installation of the hardware. And if there are some problems to run the original CD-ROM drive, other driver download sites might help.

If the computer run well for a long time but get the blue screen suddenly, it generally is due to excessive dust inside the computer memory (according to the above mentioned methods to solve), and cause compatibility problems with the system software, we can review which new software has installed recently, and check whether blue screen error will still appear after uninstall it. Or we can use windows system restore function, to restore the system directly to the last restore point to detect.

3. Trojan virus cause the computer to blue screen

Today, the Trojan viruses vary their types and way of transmission, and some of which are hard to detect. Some Trojan viruses infect the system files, causing errors or system resources exhaust, they may also cause blue screen phenomenon. It is proposed to install anti-virus software for testing. But as we all know, the update speed of anti-virus is hard to catch up with the speed of the viruses, we need to train the ability of manually killing the virus.

4. Hard disk Bad sectors cause the computer to blue screen

Same as the memory, the hard drives will also carry some of the data access operating. If the access / read system files area get the bad sectors, it can also cause system not function properly, resulting in system crash, and blue screen！

The solution: Back up important data to re-format the system partition. The successful reformat will not affect the use of the partition, or only abandoned the partition or hard disk replacement will work.

5. Bad graphics card cause the computer to blue screen

The screen has much connection to the graphics card or the video card. So if the blue screen error occurs often, we will alert to check whether the inner graphics card or video card is corrupt or not. If it is, just upgrade the intel graphics driver or change it to a new one, that would solve the problem.

Several tips to avoid the blue screen:

1. Clean the inside dust of the computer chassis regularly.

2. Do not install software casually; only install the healthy and good software.

3. Visit less the unhealthy websites, and do not open the strangers’ sharing sites.

4. Do not run multiple resource-intensive processes to avoid depletion of the computer.

5. Clean system registry and garbage regularly, check disk defragmentation to avoid hard disk bad sectors.

With all of the measures, I’m sure we’ll all keep our computer run at good condition and stop such blue screen errors.

 

Apple Worldwide Developers Conference (WWDC) was opened in San Francisco on June 6, 2011 Washington.

5,200 tickets were sold out within two hours by Apple fans from around the world.

 

On the WWDC, Steve Jobs, the Apple CEO, unveiled Apple's new generation of computer operating systems Lion, a new generation of mobile systems iOS 5 and iCloud cloud service at the conference.

Additionally, the widely rumored iPhone 4s or iPhone 5 did not show up. Indeed, the WWDC did not release any new hardware.

Jobs said Apple will launch a free cloud service -- iCloud. Through the wireless network, users can store a variety of clouds, including music, applications, ebooks, photos, contacts, calendar, data, mail and other data, can upload and download automatically.

At the same time, you can also share these with your family members and friends. iCloud Apple support different content exchange between Apple devices.

iCloud also has a wireless backup. iWork document support the feature back, and allow users to edit the document anytime, anywhere and do the cloud storage. This will allow users to edit the document file out of the previous approach.

What’s more important, iCloud is completely free and the registered users have logged 5G space.

Jobs said: "If the hardware is the brain and the bones of our products, then the software is the soul." This time, Apple introduced a new feature called iTunes Match.

Jobs said that users can buy and download legitimate music automatically between different devices through the all-new music sync service; and iTunes Match can compare the songs in the users’ music library and the Apple service data, and the matched music need not to be upload, and can provide high-quality iPad music downloads.

However, this new feature is not free; Apple will charge $ 24.99 per year for service.

 

At the same time, Jobs also showed off the next generation of Mac OS Lion (Lion) and the latest mobile systems iOS 5.

For most people, iOS 5 is still a few months away. It's likely that it won't launch until September, when Apple is expected to announce the iPhone 5, but iOS developers get to try the version 5 beta now, and we just loaded it on our own iPhone 4.

It doesn’t matter; the statistics tell us who the winner in the market is. For example, more than 100 million iOS devices has been sold and the iOS has taken up 44% markets, and has become the biggest mobile operating system.

25 million iPad has been sold since its release during 14 months. i.e., there was one iPad sold each second.

15 billion songs have been sold in the music store, which make it become the biggest music distributor all over the world.

iBookstore has sold 130 million ipad ebooks.

The download in App Store have surpassed 14 billion times.

Though many persons spoke the purpose of the new software highly, this will surely promote the sales of all Apple products. Someone said that while iOS 5 is quite a force, more are looking forward to iPhone 5 to the market soon.

It is disappointing that Jobs and other Apple executives have only emphasizes software, not mention of the iPhone.

  

The market had responded rapidly, on the date of closing, Apple closed at $ 338.04 per share, down $ 5.40 compared with the previous day, a decrease of 1.6%.

This is the Apple's biggest single-day decline in stock prices. Meanwhile, some experts claimed that the 5G of storage space of iCloud is not big enough. Though iCloud services will help the iPhone, iPad, and Apple Computer have an absolute advantage in the sales competition. Surely, the new software will make the Apple more amazing in the future!