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Amazon Kindle Wireless Reading Device

Kindle wireless reading device from amazon is an exceptional, much loved and the best selling merchandise. As its name indicates it stimulates the consumers.

Following is the review of the latest model ‘Kindle Wireless Reading Device, Wi-Fi, 6″ Display, Graphite – Latest Generation’ by amazon store.

8.5 Ounces slim and lightweight product: To fulfill the long cherished demand of consumers, amazon’s team worked hard to craft the new Kindle in a lighter and slimmer version. You can use it for hours easily. It fits in your hand perfectly due to its 3rd of an inch profile.

Ergonomic Device: We all know that when a person reads something for a long period, he changes his position many times. With the help of the page-turn button on both sides, you can read and turn pages from any position. It is very easy to hold on for a long period.

Always stays cool: Kindle never turns hot. You can use it as long as you wish.

External softwares not required to use Kindle reading device: It is a wireless electronic device. You can use it without the worry of installation of software or availability of electric connection. Computer is not required for Kindle’s new discovery.

A month long battery: You need to charge Kindle only once in a month. But if you use it for shopping and download, the duration of battery life shows some kind of inconsistency.

USB charge battery: You can charge battery of Kindle with your computer’s USB port by using micro-USB cable and U.S. adapter.

More than 3,500 books: With its only 8.5 ounces weight, kindle provide you access to over 3500 books. You can own all books as complete Kindle Library is with you always.

Search out books in one minute: With Wi-Fi network technology, you can search and download material in less than a minute. Books and Periodicals are delivered to you in 45-60 seconds. Speed of the download depends upon the nature and size of content.

Automatic archive: If you want to re-download any deleted book file, you can do so without worry because re-download of books is free with Kindle.

Categorization of collections: You can categorize your books and periodicals in your Kindle library as history section, my favorite books, my favorite writers, poetical section, fun section etc. without difficulty. You can access newspapers free of cost as well.

Relax with your easy reading: Just like a physical book, you can relax while reading. The aim of the latest design of Kindle is to help you in reading with ease.

New Wi-Fi En suite: Kindle can detect Wi-Fi network at home, workplace and recreation places automatically. If you want to use Kindle, a password is required to ensure safety.

Access to AT&T Hotspots without any charge: You can download and do shopping too at AT&T hotspots across the U.S. without any registration fee.

New Paper-like Screen technology: For clear images they have used latest paper like screens and font technology so that you can turn pages faster. You can even choose the style of the font just as in a computer.

Enjoy sun bask while reading: You can easily read the content even in sunlight. Kindle’s latest technology eliminates glare impact.

Explore, lexicon and wikipedia: With the use of Kindle Search feature, you can explore everything of your interest. You can even mark the pages and footnotes when you are making notes. You can also send the relevant material to your friends via Facebook, Twitter etc directly. You can even assess Wikipedia with your wireless kindle hand set.

It would not be any gainsaying the fact if I say that Kindle is the best that the latest technology has to offer as far as online book reading and possession is concerned.

Buy such an amazing revolutionary product here: Kindle Wireless Reading Device, Wi-Fi, 6″ Display, Graphite

How To Improve Computer Performance ?

improve-computer-performanceComputers often freeze or crash when one needs them the most, in the middle of an important presentation, a term paper that’s due the next day, or while updating our financial software. Many computer problems can be solved with free or low-cost products or just by using a few common sense tips to improve performance and keep your PC running for a long time.

1. Virus Scan Program

The most essential thing to have is a virus scan that is run weekly. Most new computers come with a virus scan already installed. If the computer you are using doesn’t have a virus scan there are free scans available online, but one really should be installed on your computer if you spend any time at all online. Spend the time learning how to use your virus scanner. Find out how it’s updated – most update automatically – and use the options to set it up to run automatically at a set time every week. Most computer problems can be prevented just by having a virus scanner installed.

2. Run the Scandisk program

At least every two months you should run a program called Scandisk. It is automatically on your computer. Scandisk actually scans your files and even your hard drive and can let you know of any problems it discovers.

To run Scandisk, first make sure everything running in the background on your PC is turned off. To do this press “Ctrl-Alt-Delete” and your close program box will appear.

Highlight each item EXCEPT “explorer” and “systray”. Click on “End Task” to close the program.

Then go to your start button and choose “Programs”. Choose “Accessories” at the top of the list. Move your cursor down to “System Tools” and Choose “Scandisk”.

A box will appear giving your choices of what you want your computer to scan. You can have it scan your files only or your entire hard drive. Scanning your hard drive will take longer.

3. Run the Defragmenter program

Another program that you should run about every two months is called Disk Defragmenter. Defrag will arrange your files better so your PC can access them faster. It’s best to run this program after the Scandisk program is finished.

To run Disk Defragmenter go back to the “System Tools” and choose “Disk Defragmenter”. It’s best to run this program overnight as it takes a long time.

You should not be using these programs while using other programs on your computer. If the Scandisk or Defrag program keeps starting over you may need to run the programs in Safe Mode, a special diagnostic mode. Read the manual for your PC to find out how to put your PC into Safe Mode.

4. Use a Firewall program

For anyone on a DSL or cable connection a personal firewall keeps viruses, hijackers and hackers from your computer. Since you are constantly connected to the internet by using these connections there is a constant threat that others may try to access your computer. There are free firewall programs available for download.

5. Run a Spyware program

Anyother important program is a spyware search program. When you download something from the internet sometimes other software is included. This software is called “spyware” and it can do many things to harm your computer, including letting someone from another website see what websites you surf in order to send you advertising. Other spyware tries to steal your passwords or other personal information. You should run a spyware checker at least once a month or at any time you are experiencing problems with your connection or computer speed.

6. Run a hi-jacker search program

Another important program to have is a hi-jacker search program. A hi-jacker changes your homepage to a different search engine page and can also block links to common search pages. They are trying to force you to use their homepage. Some of the hi-jacker’s homepages are not pages you would like your children to see. You should use a hi-jacker search program at least once a month or whenever you are having a problem with your homepage.

7. Clear your temporary files

Sometimes your PC’s virtual memory will become full. When this happens your computer may run slow, give you error messages or freeze during a program. This happens because everything you do on your PC – every picture on every webpage, every document you type, every photo you change – is saved somewhere on your PC, even after you have left that page and closed the document. In order to erase this memory you need to do the following steps:

Open your internet browser. Go to “Tools”, “Internet Options”.

A box will pop open. It should be open to the “General” tab.

In the center of the box is a section marked “Temporary Internet Files”.

Click on “Delete Cookies” and “Delete Files” one at a time. This will delete the temporary files that are clogging the PC’s memory.

8. Change your history options

Another way to clean out your computer’s memory is to change how many days it saves visited pages. You will find a “history” box in your internet options. It asks how many days you wish to keep pages in history. This is the part of the computer that saves all pages you’ve visited for as many days as you wish. By saving these pages for a smaller number of days you can clear up more of your PC’s memory.

9. Clean out old files

Periodically going through the files in My Documents or other folders you have set up and deleting or archiving them on a CD can also help your computer’s memory and performance. Do you really need to keep a saved copy of last semester’s English term paper? If not, delete it. You can also go through the programs on your PC from the control panel and delete those you no longer use. Don’t delete any of the shared files, though, if it asks, because that can cause more problems.

10. Reboot the PC occasionally

The last thing that is very important to do but seems simple is just to turn your computer off periodically. Your PC needs to be restarted in order to reset itself after new programs or equipment is installed. It also erases the virtual memory from the last session and goes through a self-diagnostic to look for any problems. It sounds like a simple solution, but most problems can be fixed simply by restarting your PC.

Troubleshooting your PC’s problems doesn’t have to cost a lot of money or require technical expertise. By using just a few software programs and common sense most problems can be stopped and you will find that your PC has better performance and reliability.

How To Clean A Computer ?

If your family is like mine, your inventory of home-based electronic devices is growing. This acceleration requires regular cleaning, especially your PC. Only three decades ago, computers were medium-sized tractor trailer samples. Trained engineers protected the delicate hardware in dust-free, environmentally controlled rooms. Contemporary personal computers, some as small as three-ring binders, sit on our kitchen counters, desks and bedroom family card tables. Family members, including pets, touch keys and drag the mouse around. The computer collects dust, cracker crumbs, and Popsicle drips. Over time, accumulated dirt problems.

You can change the maintenance and cleaning problems in setting up your PC in a friendly place. To protect your PC, keep it in a corner protected from direct sunlight and long periods of fresh air. Place it on a solid surface with good air flow behind the back of the CPU.

You need a few household supplies: q-tips, soft cloth and detergent. The only specialist materials you need are canned air and inexpensive kits for cleaning the drive heads. PC cleaned not long and not worry, you will not damage anything following these instructions. Most PCs have several parts so that they one by one. Before you begin, turn off the power to your computer.

computer-cleaningHow to clean computer screen/monitor ?

The monitor, like your television screen attracts dust and sticky fingerprints. You can take the anti-static wipes that double as screen cleaners. If you have a shock when you touch the screen, static is a problem on your workstation. Consider placing a plastic mat under the seat to reduce static build-up. I have noticed that the paper towels work as screen cleaners. Avoid spraying liquid at your monitor. Moisten the cloth and wipe the screen once a week.

Keyboard Cleaning

Regular cleaning keeps your keyboard looking new. Use a soft cloth, such as a cotton diaper, moistened with a mild soap solution to wipe out the keys. While you perform the cloth on the plastic casing around the monitor and CPU. Sure to lift the keyboard and substance under the surface. Turn the keyboard upside down to shake out crumbs or use a damp q-tip to remove them.

Avoid allowing water to seep between keys. Keyboards do not like to get soaked. Accidents can happen and I can personally guarantee that if you spill a glass of water on your keyboard, all is not lost. Set the keyboard upside down on a towel. Let it dry overnight and it must be good. If the keyboard does not respond well after an incident off time, call a professional.

Mouse Cleaning

The mouse cursor on the screen as you slide the pointing device on a padded surface. When you notice that the mouse cursor does not respond quickly, it’s time for a cleaning. Most mice have a small cover that protects the ball hidden in the cabinet. Remove the cover by rotating, shaking the cracker crumbs, and wipe the ball clean. You must also blow into the ball cage or spray cans feed air into the opening. Replace the ball and set the mouse. Clean the mouse about once a month, especially if your kids are like mine and eat near the PC.

External Drives Cleaning

Your computer, especially older models, may also be external drives. Floppy, tape, and CD-ROM drives all gathering dust. The read-write head in each station scans the hard disk or tape as it reads and writes data. A dusty head can scratch the disc or tape and cause maintenance problems. Regular cleaning is a must.

Several commercially available products can help you clean drive heads. These cheap products, generally less than $ 10.00, you need to insert in the drive, a disk or cartridge moistened with cleaning fluid. Follow the instructions of the manufacturer to change the read / write head access to scan the surface. If you are lucky a drive with a yellow caution light you know that it is time to clean when the light comes. Otherwise try to clean your drives once a Monday

Central Processing Unit-CPU

The CPU is in the metal case containing the computer parts you do not see. The motherboard, modem, network cards and live in slots at the bottom of the metal box. A high-speed fan inside the box prevents overheating and shuttles data around, after the commands. Help the fan does its job and minimize dust accumulation by ensuring that clear air space behind your CPU.

One or two times per year, or when you upgrade the memory, remove the screws from the back of the CPU and slide the lid of the box. Tape the screws to the cover, while you work. The screws are small and easy to misplace. Target a look of compressed air to an open area and spray the dust from the components. You will not hurt your computer to do so. When you’re done, slide the cover back on. It may be a tight fit. Especially for the screws back into place.

Your computer is now clean. The cost of PCs is significantly decreased in the last ten years, but the chances are that you are looking at the same monitor, keyboard and housing for a while. Spend a few minutes the care of your computer every week. You will be pleased with the results and save money!

Windows Keyboard Shortcuts

We do a ton of typing, (or at least our processors do). So when I came across this list of keyboard shortcuts I automatically thought it would be a great thing to share with you. These have saved me a ton of time. At first I hesitated to use them, but I started with one, then another, then another. Enjoy!

General Keyboard Shortcuts

CTRL+C (Copy)

CTRL+X (Cut)

CTRL+V (Paste)

CTRL+Z (Undo)

DELETE (Delete)

SHIFT+DELETE (Delete the selected item permanently without placing the item in the Recycle Bin)

CTRL while dragging an item (Copy the selected item)

CTRL+SHIFT while dragging an item (Create a shortcut to the selected item)

F2 key (Rename the selected item)

CTRL+RIGHT ARROW (Move the insertion point to the beginning of the next word)

CTRL+LEFT ARROW (Move the insertion point to the beginning of the previous word)

CTRL+DOWN ARROW (Move the insertion point to the beginning of the next paragraph)

CTRL+UP ARROW (Move the insertion point to the beginning of the previous paragraph)

CTRL+SHIFT with any of the arrow keys (Highlight a block of text)

SHIFT with any of the arrow keys (Select more than one item in a window or on the desktop, or select text in a document)

CTRL+A (Select all)

F3 key (Search for a file or a folder)

ALT+ENTER (View the properties for the selected item)

ALT+F4 (Close the active item, or quit the active program)

ALT+ENTER (Display the properties of the selected object)

ALT+SPACEBAR (Open the shortcut menu for the active window)

CTRL+F4 (Close the active document in programs that enable you to have multiple documents open simultaneously)

ALT+TAB (Switch between the open items)

ALT+ESC (Cycle through items in the order that they had been opened)

F6 key (Cycle through the screen elements in a window or on the desktop)

F4 key (Display the Address bar list in My Computer or Windows Explorer)

SHIFT+F10 (Display the shortcut menu for the selected item)

ALT+SPACEBAR (Display the System menu for the active window)

CTRL+ESC (Display the Start menu)

ALT+Underlined letter in a menu name (Display the corresponding menu)

Underlined letter in a command name on an open menu (Perform the corresponding command)

F10 key (Activate the menu bar in the active program)

RIGHT ARROW (Open the next menu to the right, or open a submenu)

LEFT ARROW (Open the next menu to the left, or close a submenu)

F5 key (Update the active window)

BACKSPACE (View the folder one level up in My Computer or Windows Explorer)

ESC (Cancel the current task)

SHIFT when you insert a CD-ROM into the CD-ROM drive (Prevent the CD-ROM from automatically playing)

Dialog Box Keyboard Shortcuts

CTRL+TAB (Move forward through the tabs)

CTRL+SHIFT+TAB (Move backward through the tabs)

TAB (Move forward through the options)

SHIFT+TAB (Move backward through the options)

ALT+Underlined letter (Perform the corresponding command or select the corresponding option)

ENTER (Perform the command for the active option or button)

SPACEBAR (Select or clear the check box if the active option is a check box)

Arrow keys (Select a button if the active option is a group of option buttons)

F1 key (Display Help)

F4 key (Display the items in the active list)

BACKSPACE (Open a folder one level up if a folder is selected in the Save As or Open dialog box)

Microsoft Natural Keyboard Shortcuts

Windows Logo (Display or hide the Start menu)

Windows Logo+BREAK (Display the System Properties dialog box)

Windows Logo+D (Display the desktop)

Windows Logo+M (Minimize all of the windows)

Windows Logo+SHIFT+M (Restore the minimized windows)

Windows Logo+E (Open My Computer)

Windows Logo+F (Search for a file or a folder)

CTRL+Windows Logo+F (Search for computers)

Windows Logo+F1 (Display Windows Help)

Windows Logo+ L (Lock the keyboard)

Windows Logo+R (Open the Run dialog box)

Windows Logo+U (Open Utility Manager)

Accessibility Keyboard Shortcuts

Right SHIFT for eight seconds (Switch FilterKeys either on or off)

Left ALT+left SHIFT+PRINT SCREEN (Switch High Contrast either on or off)

Left ALT+left SHIFT+NUM LOCK (Switch the MouseKeys either on or off)

SHIFT five times (Switch the StickyKeys either on or off)

NUM LOCK for five seconds (Switch the ToggleKeys either on or off)

Windows Logo +U (Open Utility Manager)

Windows Explorer Keyboard Shortcuts

END (Display the bottom of the active window)

HOME (Display the top of the active window)

NUM LOCK+Asterisk sign (*) (Display all of the subfolders that are under the selected folder)

NUM LOCK+Plus sign (+) (Display the contents of the selected folder)

NUM LOCK+Minus sign (-) (Collapse the selected folder)

LEFT ARROW (Collapse the current selection if it is expanded, or select the parent folder)

RIGHT ARROW (Display the current selection if it is collapsed, or select the first subfolder)

What is Web Proxy Server ?

Proxies are store-and-forward caches. When you configure your browser to use a proxy, but never connect to the URL. Instead, always connect to the proxy server, and he asked for the URL for you. Proxies can be used as a kind of firewall, because it isolates you connect to the Internet.

How does a proxy server work ?

A proxy server receives a request from an Internet service (such as a Web page request) from a user. If the filter requirements, the proxy server, assuming it is also a cache server, looks in the local cache of previously downloaded Web pages. If it finds the page, give it to the user without the need for the application to the Internet. If it does not in the cache of the proxy server as a client on behalf of the user, uses its own IP addresses to the page of the server on the Internet. If the page is returned, the proxy server on the original application and send it to the user.

For the user, the proxy server is invisible; all Internet requests and returned responses appear directly addressed to the Internet server. (The proxy is not completely invisible, its IP address
must be specified as a configuration option in the browser or other protocol program.)

web-proxy-serverWhat are the advantages of using a proxy server ?

An advantage of using a proxy server that the cache can serve all users. If one or more Internet sites are frequently requested, these are likely to be in the proxy’s cache, which the user response time. In fact, there are special servers called cache servers.

The functions of proxy, firewall, and caching can be in separate server programs or combined in a single package. Other server programs can be on different computers. For example, a proxy server on the same machine with a firewall server or it can be on a separate server and forward requests through the firewall.

There are several types of proxy servers with different properties, some are anonymous proxies used to hide your real IP address and some are used to filter sites containing material that may be unsuitable for people.

When you connect to a website, your real IP address will not be shown, but the proxy servers IP will not mean that you are completely anonymous. The proxy server will have logs of IP’s that uses the proxy server and the times.

So why would you use a proxy ?

You can use a proxy server if you have a child and the desire of the sites they view, make sure you have the right kind of proxy because not all proxies filter sites. You can use it to protect yourself, it can be used to hide your IP which is useful because it means hackers can not information about you in their use. They will only proxy servers IP. Proxy servers are not hard to install, no hardware or software, you only need to configure your browser to connect through.

Some ISPs (Internet Service Providers), all users use a proxy server, for example in the United Arab Emirates, the leading ISP, all users use a proxy server which blocks sites with inappropriate material. It does this using the meta tags in the HTML code used to access the web page. Some ISPs can offer you a choice, so you can use or not. If you want to use a proxy server, there are many around with different functions, you only need the one that suits your needs best.

Child Safety On The Internet

As a parent you have the responsibility to your children with good education, nice clothes and a lot of other wants. That does not stop, you are also expected to ensure that your children have the right moral development. With the spread of the Internet, there is a concern about the safety of children on the Internet. Although much effort has been to protect children against the vices on the Internet, more desirable.

Although the internet can be a tremendous source of learning and provide hours sensation to the children, it is also dangerous in the same measure for the moral development of young people. As a result, parents have concerns about the safety of their children behind the scenes with the most censorship software showing vain. Over the years of the Internet, there is concern about the pornographic content, such as videos, pictures and text information. More extreme situation has evolved with the popularity of chat rooms and instant messaging. It is well know how some adults will benefit as children and chat with un-suspected children, while in some cases organizing secret meetings with the children. Although some sites have some security check-points to prevent such scenarios, the majority failed playoff.

child-internet-safetySome web sites have explicit images of children exposed. Only few of them, the warning messages on their own pages to the attention of the user of the nature of the material therein. This is a huge problem for children as there is no control on the entry of the site. Spam mails morally inappropriate photos, videos or information is another concern for most parents. The list is endless.

Although there is no one technique can be used to guard against unsafe exposure of information to our children, a number of Internet safety for children can ensure that children are safer. It is good to advise your children not to reveal their personal information online. Details such as real name, location, school, phone numbers and so on. Advise your child never to accept to meet a person from the Internet without the presence of a parent or guardian.

It is also good for the amount of time your child remains online. Too much time on the Internet will probably go to your children to more unsafe content. You can also use software tools that are designed to filter out explicit sites are opened to ensure the safety of children online.

Presentation of the network security For Kids is one of the few books written on the World Wide Web that presents information on how to monitor your kids’ Internet usage and how to keep them safe.

Importance Of Security For Websites

While doing research for her thesis money laundering, a law student competition often employed the use of Google. Obviously, this was useful in the course of writing her paper. On her dismay, her method began to break when they typed in key words and they led her to a nasty site not relevant to money laundering to be.

Originally they believed that the problem could be with the search engine or the Internet, but the frequency and repeated nature of the problem made her think that someone had bugged her computer. The defense of our bugs in the human nature is an easy task. In contrast to the law student was confronted with adware and spyware bugs, whose attacks are difficult to eliminate. The fact that the law student used her computer to write and research her paper is good evidence that they are not well enough trained in the technology to ease the fight in these computer bugs.

security-for-websiteThe student is the case similar to that of many people who are caught in the advance technological problems of spyware and adware. Despite the fact that it is not a popular part of the English until 2000, the origin of the word ‘spyware’ is dated 1995. As the name suggests, this may be the ‘intelligence’ of personal information through a computer program or script.

Logging keystrokes, scan the hard disk, and the treatment of the web browsing history, the ways in which this can be achieved. Although it sounds like something from a James Bond film, everyone can be a victim of spyware. The invasive monitoring of internet activities makes it safe to call the affected victims. Spyware can understandably be used to spy on criminals because such use is beneficial for society, but how about using this type of program to intercept credit card data, etc. “With spyware to spy on criminals would be for society, but the use of these program to steal credit card information in and of itself criminal. Anti-spyware programs should never be regarded as “optional” for each computer.

While the blocking of spyware, you should also block adware and malware on your system is fully protected. Blocker for harmful spyware and adware programs are easily accessible on the Internet. Spyware, adware and malware bugs prove that the computer need not be self-multiplying, such as viruses and worms, to prevent the normal use of computers. Unfortunately, the huge delay of infected computers is one of the side effects that may result from these programs. Together with the problems they cause, some spyware sneaky enough to hide from detection, making the crime remain unpunished. Combating the problem before it starts, by installing a good lock is the way to go.

What Is Encryption ?

Since the Internet has become an important tool to gain access to an endless source of information, safety of computers and data has been very important as well.

Encryption is a process that is vital for a stable and secure environment for the computers and the Internet. The basis for encryption is derived from the age old process called cryptography, secret writing, which in fact must be decoded. Because cryptography is based on human input, computers are required to transcript the data and deliver safely to desired person.

What is encryption?

First, encryption is a method by which all forms of messaging, like e-mail, e-commerce, banking, or other personal data is encrypted, so they are unreadable to any other persons who does not have right to open it. This form of security is necessary to protect the privacy of almost all personal and private information held by one computer to another. Information, such as data or messages that are normally sent is known as plain text until that information is encrypted and then labeled as cipher text.

Here is a list of the various methods of encryption is used on the Internet today:

Banks and other financial institutions

Credit Card Companies

Private correspondence (e-mail)

Information for applications, for example, social Security numbers, individual personal profile information and other personal profile information.

Company Profiles and private information

Computers can use either of the two encryption schemes, public key or symmetric key, to convert plain text to cipher text to lock or unlock the data.

Public Key Encryption

Public key encryption, two keys are used with a user, a public key and a private key. The public key is given by a computer to another computer to which it communicates with. Then, to decode a message, a private key assigned to a specific individual user is used together with the public key.

PGP is a public key encryption scheme, it is more widespread because by this way, the  user can encrypt almost any amount of information.

Symmetric Encryption Key

This way, only one key is used, which is secret between your computer and the other one you are communicating.

Symmetric keys can be a faster method, but the two computers must have to change their information securely, where public key encryption do not have this problem.

The conversion of the plain text to cipher text is done using encryption algorithm, which is mathematical instructions used to convert.

The difference between the two encryption schemes is the length of the algorithm keys. The public key uses a larger amount of bits than the symmetric key.

Most computer systems are using both public key and symmetric key encryption today.

Encryption is the most reliable process for the much needed security people can rely on today at most of their important and personal transactions, allowing them to security and trust.

What is Super Computer ?

super-computerSuper Computers, like any other typical computer, have two basic components. The first is the CPU that executes the commands it needs to do. The other is the memory that stores data. The only difference between an ordinary computer and super computers is, super computers have CPUs faster than standard computers. This particular part determines the exact speed that a CPU can work. Using complex and state-of-the-art materials are connected, such as pipes, supercomputer designers optimize the functions of the machine. They are also trying to smaller length of circuits may be connected to the information from memory to the CPU at a lesser time.

Super Computers are designed for complex calculations at higher speeds than other computers. The designers use 2 processes for the improvement of its performance first method is called ‘pipe-lining’. It doing complex operations simultaneously by grouping numbers in the same order that calculates and are transmitted to the CPU in an orderly manner. The circuits in the CPU works continuously when data is entered into it.

Another method used is called ‘parallelism’. It does calculations in a similar way than orderly. This is where it performs different data at the same time and move on step by step. A common way to do that is to connect different processors that do calculations together. Each of these CPUs work for the commands given to it to execute on any piece of information.

All supercomputers use parallel or pipeline separately or even combine its processing speed. However, an increasing demand for calculating machines to the creation of the (SMP) massively parallel processing supercomputers. It consists of several machines connected to achieving a high level of parallelism.

Mobile Phone Dangers

mobile-phone-dangersWherever you may go, you always find a person talking over a mobile phone. Even at a place where the cell phone is prohibited you can find a few people talking over their phones or at least using the SMS facility of their mobile phones.

An Explosion In Cell Phone Use

Mobile phones have become a craze the world over and especially in the last decade their use has increased tremendously. More than one billion users use the cell phones all over the world. As a result, at any given time there are a lot of phones that send their waves of different frequencies in the in the air. So, people have become increasingly concerned about the danger from these cell phones. According to a study, the cases of brain cancer have increased in the last decade, after the introduction of these phones. All the more, brain tumors have been found to occur at the same spot where persons keep their phone while talking. It is implied from such studies that long-term mobile phone use may be a cause of brain tumors and brain cancer.

Why Are Cell Phones Dangerous ?

Actually, when we use cell phones, they emit radiation. The level of this radiation is though quite low. However, if we use the hands-free gadget, exposure to this radiation is increased. Some experts point out that apart from the health related danger of cell phones, the danger of inattentiveness is more prominent. When people are using cell phones, they become oblivious of their surroundings and are at an increased risk of meeting with an accident. Driving becomes careless and your life as well as the life of other people is in grave danger. If you use a hands free set, you can use both the hands properly, but you attention is still with your mobile phone. The risk of an accident is still very high.

Is There Any Ray Of Hope ?

Everything is not that gloomy and pessimistic. A study in Denmark that involved more than half million cell users indicates that there is no solid proof that brain cancer is related to cell phone use. However, studies do indicate that the persons who use analogue phones are at risk of brain diseases. So much variance in studies has led to a divergence in opinion regarding health risk from mobile phones. More studies need to be done before arriving at a particular conclusion. Also, now cell phone companies are devising ways so that the exposure to radiation while using phones can be reduced to a minimum. Gradually, this exposure will be totally eliminated by the rapid advancement in technology. So, until then, you should avoid talking over mobile phones for hours at a stretch and should not use them while driving or while walking on roads. You should not think about throwing your mobile phones away as they are of great use in the modern day world.