There are number of things that can crash down different parts of your computer. Power problem is the major factor responsible for causing random crashes on computer. Frequent power failure and surges can damage your computer system and crashes it down. For this reason, it is recommended to use surge suppressor to keep the PC safe from damages due to power problems.

Computer virus such as Trojan horse, spyware is another reason that can cause random crash to computer system. Random crash can be recognized only when the system slows down, slow processing of files etc. random crash may also occur due to some corrupted program on a computer. Overheating of central processing unit is also a reason for random crash of a computer system. Registry malfunctioning is also responsible for causing random crashes on a computer system. Computer can also experience random crash when printer becomes overloaded with large amount of data.

Nowadays viruses are highly infecting the computers and causes damage to it. It is very necessary that you keep your computer safe from hackers and viruses. Viruses often infect your computer in the form of greetings, email attachments, funny images, video, audio etc. For this reason, it is advisable that you do not open email attachments. You should open them only if you are expecting attachments from someone. Do not open an attachment with extensions such as .scr and .pif.

Viruses can infect your computer when you download files from internet. One must download only from the reputed and official websites. It is necessary that you update antivirus as soon as it gets expired. Regular scans should be run whenever computer is on. Keeping your computer virus free increases the speed and performance of the computer. Computer virus damages your programs thereby disabling the computer and creating a worse situation.

Viruses play a vital role in infecting the computer and damaging all the data of the computer. If virus infected a computer of a company, then it can destroy the business of that company by making the system unrecoverable. Nowadays antivirus software has been designed for the security of the computer and its data. There are several antivirus available in the market. Out of them some antivirus are free i.e. they provide a free antivirus scan and protects your computer from the virus.

Free antivirus software is found in market in large amount. It is necessary to take care while selecting antivirus for your PC. The free antivirus that has feature of effectiveness must be chosen. Ease of use is another factor that must be considered while choosing free antivirus software. Free antivirus that you select must also contain firewall and spam blocker. Avast is the free antivirus that you can choose for your PC since it detects even the smallest virus from your PC.

Nokia has been known by its success in the mobile phone industry. They are now venturing into the laptop market by launching their own range of computers with the first, The Nokia Booklet 3G, based on Microsoft Windows, powered by an Intel Atom processor. It is designed to deliver unto 12 hours of battery life and weighs about 1.25 kilograms with a thickness of about two centimeters.

The Mini Laptop comes with an HDMI port for HD video out. It is designed with a front facing camera, integrated Bluetooth and an SD card reader. The screen is 10” and has integrated A-GPS that works with Ovi maps.

With this, Nokia would be in a position to exploit a wider scale in marketing, supply chain and distribution in the already heavily commoditized market. It aims to create computers that are more social, helpful and personal in response to the wide number of users who wanted PCs with full mobility benefits as well as connectivity.

Apple has designed a new Os called the Mac OS X Snow Leopard that has extensive and advanced features to make it one of the best OS available in the market. The OS is faster, better and easier to use. Its process from installing the OS and others operational procedures such as ejecting external drives has been made easier and more simplified. It has a more advanced Finder which is completely rewritten to take all the advantages offered by the Mac OS X. The Finder is more responsive and comes with a snappier performance.

The OS is fitted with next generation devices such as 64-bit support which takes the advantage of the memory of your Mac. It comes with a grand central dispatch which is useful in getting the best in multicore processors. The openCL unleashes the power of graphics software to accelerate the performance of applications. It also comes with an advanced technology that helps people with disability to enjoy their Mac experiences.

The idea of molecules that can perform computations is not new rather it is a traditional approach to computation in both theoretical and technological perspectives. Bio-molecular computing has added to our understanding of both biology and computer science. The whole process operates in a natural noisy environment in which computer instruction machinery is embedded. It uses DNA and other biological materials as the basic building blocks for constructing computational machines to solve difficult problems.

Bio-molecular Computing opens the possibility of providing a solution to the future designing computers in terms of construction and efficient computation. It also provides a programmable access to nanosystems and the molecular biology world thus extending the reach of computation. It also uses wider and complex algorithms that run on molecular hardware and open up new models of computation. To top it all it opens computers to a wider range of applications in the manufacturing, diagnostics and control of molecular processes. With all these it increases our understanding of information flow as well as the limitations of computation.

Microlithography is a technology used in manufacturing semiconductors. It replicates an image pattern from a photomask on to a silicon wafer coated with photoresist (a light sensitive material) the process involves light passing through the photomask and causing the photoresist to be exposed to the wafer thus creating a blueprint for the semiconductor material that will be deposited on it. The semiconductor materials are used to make chips. The same process can be used in creating displays where the blueprint is the photomask which is used for the pixels and for driving transistors o the display glass. This technique is also used in the fabrication of sensors, actuators and biomedical devices.

The process has benefited from the knowledge of organic chemistry and photo-induced organic transformation. Many manufacturers keep in mind some factors while manufacturing these products. Some of them include cleanliness and quality that can meet the requirements of clients worldwide. Uniformity of temperature matters a lot in the whole production as this will determine the features of each unit processes.

Since a long a time ago, users had to rely on their operating system to print. This usually requires them to install a driver for the printer to be used. This is soon to be a thing of the past since Google has designed a new service to deal with it. Though it is in its early stages of development, Google Cloud print is designed to enable computer users to print any application either web, desktop or mobile on any printer without any problem.

With Google cloud print users will no longer rely on their local Operating system and drivers to print. The will use the application to submit and manage print jobs. The application then sends the print job containing the options selected by the user to the appropriate printer. The advantage of this is that it accepts custom print options as well as the simple print dialog. It can also be available for third part users once the APIs are available.

E-mails are personal information that should not be accessed by people. There are people who still get hold of other people’s mails and start going through them.

One of the ways in which a person can use to track their emails is the “read receipt”. This one is the most commonly used method in which a confirmation message is sent to the recipient who then can choose to say whether they received the message or not. This is however not substantial because a person may choose not to answer.

The other email tracking system requires a person to have a server. This system works for most e-mail systems. When a person sends a message to any other person, it is indicated on the server inclusive of date and time. It is however good to have a separate page to store this information and leave it not tampered with. The good thing about this system is the fact that a recipient of a particular message will not know that they are being tracked.

Laptops can get spoilt when handled carelessly but there are other gadgets like the keys which can get spoilt due to being overused. This would require a person to replace the laptop keys. To get that keying in underway the following steps should be followed.
1. Get to know the keys so that you can know which key belongs where. You can even hold them in place and see if they fit.
2. Look for the key that needs a replacement. In case of a crack just lift the key using the finger by raising one of the corners.
3. Disconnect the key retainer from the keyboard. This can be done using a toothpick.
4. Taking the new keys and in case of a broken retainer it is advisable to purchase one.
5. Replace the key by pressing the new ones on the retainer. Ensure that they are firm when doing this.
These five simple steps can get you a new looking keyboard in no time at all.