Write Web Content That Drives Traffic To Your Website

Wednesday, 11 December 2013

Recently, technology is developing day by day. Nowadays, people have more access tocomputers and internet. They prefer to collect knowledge on one click instead searching through books and libraries. This is the basic reason why article writing is an emerging and growing trend in the current day world.
Another reason behind its growth and emerging popularity is to distribute and manage knowledge and other intellectual information that one has in his mind. However, there are some guidelines and proposed techniques that should be followed by the writers while writing a website article.

Techniques To Write Web Content For Increased Site Traffic

Arraign ‘Web Page Title’ With ‘Website Theme’

When a website article is written, it is necessary that the article should correspond with the purpose and theme of the website. This will improve the relevance of the article and thus, will be able to attract more and more viewers.
The virtuWeb Page title is a source by which the data present on a particular web page can be predicted. It will help viewers to determine whether the information they are searching for will be present in the website or on a particular web page. That is why the article written for a particular web page should contain the title of the web page.

Assure The Authority And Concreteness Of Information And Data Used In Your Web Content

The information presented in the article should be concrete and fully supported by facts and figures. The information should not be vague or dependent on assumptions. This provides a reliability of the information provided and thus, of the article as a whole.
If you are on your way to develop a niche website or authority blog then keep in mind that you should first build your site around factual and solid articles before you start theorizing.

Use Understandable Web Font Styling And Color

The font used while writing a website article should be the one that is understandable and can be read easily.Standard practices are Times New RomanArial and Verdana. Complicated or incomprehensible font types will distract the viewers as they will be willing to read the text only if it is capable of easily understandable.

Keep Your Sentences Short And Simple

The viewers may not be likely to read information that is too much lengthy without any purpose. So, the sentences of the article should be kept as much short and simple as possible. This may be done through omitting wordy phrases and expressions and avoiding unnecessary repetition.

Avoid Getting Flowery With Your Language Style

The paragraphs used in the article should also be short. The writer should not use proverbs extensively as they have special meanings which may not be understood by all the viewers. Such unnecessary repetition and use of proverbs may decrease the interest of the viewers inthe article.

Use Website Citations In Articles Or Blog Posts To Reek With Authority And Research

In some articles, the work cited is also required to be given. The references of the websites viewed are given in the end of the article. However, writing citations is also not an easy job. There are a number of styles which are used while giving reference of the work cited. Harvard, MLA and APA citations are usually used.

An Introduction To XML Extensible Markup Language

What Is XML Extensible Markup Language?

XML (Extensible Markup Language) is a meta markup language which is progressing to replace the standard and well known HTML. It has been developed by W3c (World Wide WebConsortium) and the emphasis lies in making the compatibility of online documents simpler and more supple. Not that much popular on the internet, XML language is used for creating data and documentation for applications and tools.
SGML (Standard Generalized Markup Language) is an ISO standard technology compliance for markup languages like XML, HTML and XHTML. HTML, so far is the most used markup language in the world. However, numerous glitches and compatibility issues are surfacing in the compliance of HTML with SGML standards. For this reason, the shift to a more simpler and flexible markup language is necessary to facilitate documentation for application which can be easily convertible from one form to another.
The main focus of XML relies on user-created tags by defining their labels and permitted usage.

Structure Of A Typical Data Document In XML Extensible Markup Language

This is the first line of an XML document. This line defines the standard compilation of theXML document with a specific version and declares what the document is going to consist of. The xml declaration begins and ends with “?”
<?xml version ="2.0"?>
Parent Element
This is the root element of an XML document and consists of a start tag, content and end tag. There can be only one parent element per an XML documents. All other elements should go inside the parent element and must be properly closed.
For example:
<data> Content for XML goes here </data>
An element with no content inside it is called an empty element.

Example Of A Typical Document XML Extensible Markup Language

<?xml version ="2.0"?>

<title> This is an XML document file </title>
<header source = "headerimage.png "/>
<heading.start> First heading=ng </ heading.start >
So, we are going to learn about XML extensible markup language

<footer source= headerimage.png "/>

How Do I  Create And Edit XML Files Or Documents?

XML Editors

XML editors come with fully packed resources fro creating and editing XML files anddocuments. There are many free options to help you getting started like Notepad++, Serna Free – Open Source XML Editor and XML Notepad 2007. Then, there are commercially available full-featured packed editors like Oxygen and Liquid Technologies, who offer a wide range of options to crate and edit your XML docs.

New Password in a Heartbeat

Thursday, 26 September 2013

Pacemakers, insulin pumps, defibrillators and other implantable medical devices often have wireless capabilities that allow emergency workers to monitor patients. But these devices have a potential downside: They can be hacked.
    Researchers at Rice University have come up with a secure way to dramatically cut the risk that an implanted medical device (IMD) could be altered remotely without authorization.
Their technology would use the patient's own heartbeat as a kind of password that could only be accessed through touch.
Rice electrical and computer engineer Farinaz Koushanfar and graduate student Masoud Rostami will present Heart-to-Heart, an authentication system for IMDs, at the Association for Computing Machinery's Conference on Computer and Communications Security in Berlin in November. They developed the technology with Ari Juels, former chief scientist at RSA Laboratories, a security company in Cambridge, Mass.
IMDs generally lack the kind of password security found on a home Wi-Fi router because emergency medical technicians often need quick access to the information the devices store to save a life, Rostami said. But that leaves the IMDs open to attack.
"If you have a device inside your body, a person could walk by, push a button and violate your privacy, even give you a shock," he said. "He could make (an insulin pump) inject insulin or update the software of your pacemaker. But our proposed solution forces anybody who wants to read the device to touch you."
The system would require software in the IMD to talk to the "touch" device, called the programmer. When a medical technician touches the patient, the programmer would pick up an electrocardiogram (EKG) signature from the beating heart. The internal and external devices would compare minute details of the EKG and execute a "handshake." If signals gathered by both at the same instant match, they become the password that grants the external device access.
"The signal from your heartbeat is different every second, so the password is different each time," Rostami said. "You can't use it even a minute later."
He compared the EKG to a chart of a financial stock. "We're looking at the minutia," Rostami said. "If you zoom in on a stock, it ticks up and it ticks down every microsecond. Those fine details are the byproduct of a very complex system and they can't be predicted."
A human heartbeat is the same, he said. It seems steady, but on closer view every beat has unique characteristics that can be read and matched. "We treat your heart as if it were a random number generator," he said.
The system could potentially be used with the millions of IMDs already in use, Koushanfar said. "To our knowledge, this is the first fully secure solution that has small overhead and can work with legacy systems," she said. "Like any device that has wireless access, we can simply update the software."
Koushanfar noted the software would require very little of an IMD's precious power, unlike other suggested secure solutions that require computationally intensive -- and battery draining -- cryptography. "We're hopeful," she said. "We think everything here is a practical technology."
Implementation would require cooperation with device manufacturers who, Koushanfar said, hold their valuable, proprietary secrets very close to the chest, as well as approval by the Food and Drug Administration.
But the time to pursue IMD security is here, Rostami insisted. "People will have more implantable devices, not fewer," he said. "We already have devices for the heart and insulin pumps, and now researchers are talking about putting neuron stimulators inside the brain. We should make sure all these things are secure."

New Technology Protects Against Password Theft and Phishing Attacks

New technology launched today by Royal Holloway University, will help protect people from the cyber attack known as "phishing," believed to have affected 37.3 million of us last year, and from online password theft, which rose by 300% during 2012-13.
    Phishing involves cyber criminals creating fake websites that look like real ones and luring users into entering their login details, and sometimes personal and financial information. In recent months, the Syrian Electronic Army (SEA) has successfully launched phishing attacks against employees of the Financial Times to enable them to post material to its website, and mass attacks were launched within Iran using a fake Google email, shortly before the elections.
Scientists from Royal Holloway have devised a new system called Uni-IDM which will enable people to create electronic identity cards for each website they access. These are then securely stored, allowing owners to simply click on the card when they want to log back in, safe in the knowledge that the data will only be sent to the authentic website. A key feature of the technology is that it is able to recognise the increasing number of websites that offer more secure login systems and present people with a helpful and uniform way of using these.
"We have known for a long time that the username and password system is problematic and very insecure, proving a headache for even the largest websites. LinkedIn was hacked, and over six million stolen user passwords were then posted on a website used by Russian cyber criminals; Facebook admitted in 2011 that 600,000 of its user accounts were being compromised every single day," said Professor Chris Mitchell from Royal Holloway's Information Security Group.
"Despite this, username and password remains the dominant technology, and while large corporations have been able to employ more secure methods, attempts to provide homes with similar protection have been unsuccessful, except in a few cases such as online banking. The hope is that our technology will finally make it possible to provide more sophisticated technology to protect all internet users."
Uni-IDM is also expected to offer a solution for people who will need to access the growing number government services going online, such as tax and benefits claims. The system will provide a secure space for these new users, many of whom may have little experience using the internet.

New Multifunctional Topological Insulator Material With Combined Superconductivity

Most materials show one function, for example, a material can be a metal, a semiconductor, or an insulator. Metals such as copper are used as conducting wires with only low resistance and energy loss. Superconductors are metals which can conduct current even without any resistance, although only far below room temperature. Semiconductors, the foundation of current computer technology, show only low conduction of current, while insulators show no conductivity at all.

Physicists have recently been excited about a new exotic type of materials, so-called topological insulators. A topological insulator is insulating inside the bulk like a normal insulator, while on the surface it shows conductivity like a metal. When a topological insulator is interfaced with a superconductor, a mysterious particle called Majorana fermion emerges, which can be used to fabricate a quantum computer that can run much more quickly than any current computer. Searching for Majorana fermions based on a topological insulator-superconductor interface has thus become a hot race just very recently.
Computer-based materials design has demonstrated its power in scientific research, saving resources and also accelerating the search for new materials for specific purposes. By employing state-of-art materials design methods, Dr. Binghai Yan and his collaborators from the Max Planck Institute for Chemical Physics of Solids and Johannes Gutenberg University Mainz in Germany have recently predicted that the oxide compound BaBiO3combines two required properties, i.e., topological insulator and superconductivity. This material has been known for about thirty years as a high-temperature superconductor of Tc of nearly 30 Kelvin with p-type doping. Now it has been discovered to be also a topological insulator with n-type doping. A p-n junction type of simple device assisted by gating or electrolyte gating is proposed to realize Majorana fermions for quantum computation, which does not require a complex interface between two materials.
In addition to their options for use in quantum computers, topological insulators hold great potential applications in the emerging technology of spintronics and thermoelectrics for energy harvesting. One major obstacle for widespread application is the relatively small size of the bulk band gap, which is typically around 0.3 electron-volts (eV) for previously known topological insulator materials. Currently identified material exhibits a much larger energy-gap of 0.7 eV. Inside the energy-gap, metallic topological surface states exist with a Dirac-cone type of band structures.
The research leading to the recent publication in Nature Physicswas performed by a team of researchers from Dresden and Mainz around the theoretical physicist Dr. Binghai Yan and the experimental chemists Professor Martin Jansen and Professor Claudia Felser. "Now we are trying to synthesize n-type doped BaBiO3," said Jansen. "And we hope to be soon able to realize our idea."

Study Shows Over 200 Mobile Apps Related to Dermatology

            A surge of mobile apps related to dermatology has allowed scores of smart phone users to track and diagnose a wide range of skin diseases but doctors are urging caution, according to a study published today in the Journal of the American Medical Association.
                  "There are 229 dermatological applications out there and most are free," said Robert Dellavalle, MD, PhD, MSPH, senior author of the study and Associate Professor of Dermatology at the University of Colorado School of Medicine. "Yet this is an area of buyer beware because there are no regulations and no guarantees that these apps are providing accurate medical information."
The study found mobile applications for monitoring psoriasis, connecting people with patient organizations, diagnosing melanoma, dispensing sun screen advice, dermatology education and skin medications.
Self-surveillance/diagnosis apps vary widely in capabilities. Some allow patients to document lesions, upload and receive dermatologist or algorithm-based feedback about the malignancy potential of lesions, follow diagnosis algorithms and log personal treatment regimens.
Others are focused on a single malady like acne, rosacea, psoriasis or eczema. Patients and doctors can interface on apps and one lets users get pathology results from their phone. Another, Dr. Mole, allows users to photograph a mole and monitor its changes over time to determine if it's cancerous.
The 10 most reviewed apps included:
    1. Ultraviolet-UV Index
    2. VisualDx
    3. SPF
    4. iSore
    5. SpotMole
    6. Pocket Derm
    7. Skin Scan
    8. Doctor Mole
    9. What's My Rash?
    10. Skin Conditions
The U.S. Food and Drug Administration announced Monday that it would only regulate the small number of apps that act like medical instruments, those that perform ultrasounds or other procedures.
Dellavalle, Chief of Dermatology at the Denver Veterans Affairs Medical Center, said the rise in medical apps in general and dermatology in particular offers the chance to expand care into rural and underserved populations.
They may also help mitigate the shortage of dermatologists nationwide. Still, he urged people to use common sense.
"There is a huge expansion of medical apps across all disciplines now. This will require some caution by users but it also opens up new opportunities," he said. "I think most apps are generally safe right now, but I would not rely solely on them. I would cross-reference them with other apps, other people and with your doctor."

Glitch sends Google Hangouts and GTalk chats to wrong people

Google's Hangouts/GTalk messaging system was hit by a glitch that saw messages being incorrectly delivered to unintended recipients.
Several users found that after around 4 p.m. Sydney time, messages sent over Google Hangouts and GTalk were sent erroneously to the wrong recipients.
There appeared to be no pattern to who was receiving the messages by mistake, or who the glitch was affecting.
ZDNet confirmed first-hand that the glitch was present within Google Apps for Business accounts, including those that have not yet switched over to Google's new Hangouts platform. Messages appeared to be visible on the mobile version of Hangouts. There was no indication that the messages were being received by a third party.
Google only recently issued an update to the mobile version of Hangouts, upgrading it to version 1.1.2.
When contacted earlier for comment, a Google spokesperson told ZDNet: "We're investigating reports of an issue with Google Talk. We're sorry for the inconvenience. For further updates please refer to the Apps Status Dashboard." 
Since that time, Google has updated that dashboard with a more promising note: "The issue has been resolved and all services are gradually returning to normal."
This story originally appeared at ZDNet under the headline "Google Hangouts/GTalk glitch sends chats to wrong recipients." It has been modified somewhat in this version

Apple had a map mishap? Nokia must mock it

You can get giddy when thousands of people retweet one of your clever (or even not so clever) quips.
The tweeters at @Nokia_UK were no doubt renegotiating their compensation packages after a September 10 tweet mocking Apple's colorful iPhone 5C received more than 40,000 retweets.
They surely couldn't wait for another chance to sling rocks at the Apple Goliath.
Thankfully on Wednesday, a report emerged that Apple maps had led drivers onto a taxiway at Fairbanks International Airport in Alaska.
"What joy," thought Nokia's tweeters in the UK. "We must mock this. Anyone have any ideas?"
I wonder how many seconds it took before someone suggested: "I know, let's tweet: 'There's an app for that."

Google Street View in the Large Hadron Collider is a smash

Perhaps Google Street View should be renamed "Google Anything View." Google's wandering cameras have now made their way into CERN's Large Hadron Collider, the atom-smashing wonder located under the Franco-Swiss border.
Since it wasn't feasible to send a Google Street View car into the Large Hadron Collider facility, a specially equipped trike was employed instead. The Street View explorations are now available online for the public to peruse. You can follow along through the tunnels of the particle collider and pretend you're on the staff at CERN.
CERN issued a notice to employees to go about business as usual when the Street View team showed up, and to not display any banners or signs. Employees visible in the Street View images have all had their faces blurred out for privacy.
You can easily get lost in the details of this Street View, panning around, checking out the signs and equipment. There's a helium-release point caution sign, an emergency-stop button, and tons of mysterious bits of hardware and scientific graffiti on the walls and tubes in the tunnel.
The control rooms are a fascinating stop as well. The ALICE experiment, a project dedicating to finding answers about the beginning of the universe, has a busy control room full of workstations and scientists. It's a fascinating tour through one the biggest and boldest science projects ever created.

iPhone, iPad owners complain of motion sickness due to iOS 7

At least some of the 200 million people that have downloaded iOS 7 to this point aren't so pleased with what they've found.
Apple's iPhone and iPad owners have been taking to the company's forums over the past week to complain about iOS 7's new parallax and zoom features. Many of the folks in the forum said that they've experienced motion sickness, vertigo, nausea, and headaches due to the motion on-screen.
"The zoom animations everywhere on the new iOS 7 are literally making me nauseous and giving me a headache," one forum poster wrote last week. "It's exactly how I used to get car sick if I tried to read in the car."
Several posters reported similar issues over the past week, and some said that they've tried calling Apple about the problem, but were told that only some of the features can be turned off. Some users report resorting to downgrading from iOS 7 to iOS 6.
iOS 7's design was built completely from the ground up. The operating system's color scheme is simpler and a new parallax feature allows users to feel as though they're head on with the display even as it's being tilted in different directions. The new operating system, which was conceived by the company's design guru Jonathan Ive, also has new zoom functions to access applications.
Although zoom functions will likely remain in place with no ability to modify them, the parallax option can be mitigated from the Accessibility menu in iOS 7. Upon choosing "reduce motion," users should be able to turn off the parallax function.
CNET has contacted Apple for comment on the forum complaints. We will update this story when we have more information.

'You want gold iPhone? I get you gold iPhone,' says Conan's Raffi

Can't find the golden iPhone? Don't worry. Raffi can get you a deal, at least if you're willing to go along with a sketch aired Wednesday night on Conan O'Brien's late-night talk show.
Fans of Coco first met iPhone salesman Raffi Jaharian a couple of weeks ago after Apple launched its two new iPhones. Sporting gold chains and gold rings and touting gold as "best, best, best," Raffi claimed that he was the man behind the gold iPhone.
In the latest sketch, Raffi is back and is now offering deals to i
Phone customers eager to buy the hot-selling golden version. While a (faux) Apple exec says that more gold iPhones will be available in a few weeks, Raffi promises to deliver in a few days.
"You want iPhone gold? I get you iPhone gold," Raffi says. "Gold is best. iPhone gold faster, bigger, louder, quieter, smaller, sexier, wetter, taller. It's just best."
Another phony Apple exec advises people to just place their iPhone orders at a local Apple store and the phone will be shipped as soon as it's available. But Raffi has a different deal up his sleeve.
"Raffi got you. Here's what you do," says Raffi. "Go to your local Apple store. Not in front, but in back. Don't talk to Geniuses. Talk to one of my nephews. They all wear gold tanktops and gold sneakers. On eBay, they charge you triple. But for you, you only pay double."
And to counter the suggestion that customers go to Apple's online site to get an iPhone, Raffi has a slightly different Web site in mind -- 

A new company out of the UK has designs on becoming the Netflix for children.
Named Hopster, the company plans to launch an ad-free television and learning application for iOS in November, its founder and former Viacom executive Nick Walters revealed to All Things Digital on Thursday. The service, which will be designed for kids between the ages of 2 and 6, will launch in the UK, but could make its way to other countries at some point.
According to Walters, his service will launch with 800 episodes of popular kids shows, like "Babar" and "Paddington Bear." It'll also feature kid-friendly games. He told All Things Digital that Hopster has so far raised a little over $1 million, and will charge customers between $8 and $10 per month to access the service. At its onset, the service will be available exclusively as an iOS app.

New York hackathon brings together next generation of programmers

Friday, 5 July 2013

At New York City's Museum of the Moving Image's theater, a dark head of hair peeks over the podium and a 10-year-old-boy explains how he and his partner – a young girl barely clearing the dais – created a website about graffiti in the city.
The two kids gathered with 48 others on Saturday and Sunday morning – sacrificing precious video-game playing, friend-hanging and homework-doing time – to parse open civic data to create websites, applications and mobile tools at Young Rewired State's first international youth hackathon.
Young Rewired State started in 2009 to build a network of young programmers. It expanded to multiple events in the UK and has attracted children as young as six. Young Rewired State founder Emma Mulqueeny wanted to expand the events international presence to introduce more youngsters to open government data.
"New York and the US are the heart of entrepreneurism, really – I think it's moving from Silicon Valley to New York," Mulqueeny told the Guardian. "I could see the most exciting things happening here and the greatest opportunity for the young people we are trying to be bring out of their bedrooms and be a part of this."
The program emphasizes peer-to-peer learning by connecting participants with the more than 1,000 young people who have participated in the UK program. The idea is to bring the so-called "bedroom programmers" out from what can be the lone experience of a programmer to work together and foster their talents. Participants also receive help from professional programmers who volunteer as mentors at the event.

what is css?

What You Should Already Know

Before you continue you should have a basic understanding of the following:
If you want to study these subjects first, find the tutorials on our Home page.

What is CSS?

  • CSS stands for Cascading Style Sheets
  • Styles define how to display HTML elements
  • Styles were added to HTML 4.0 to solve a problem
  • External Style Sheets can save a lot of work
  • External Style Sheets are stored in CSS files

    CSS Demo

    An HTML document can be displayed with different styles: See how it works

    Styles Solved a Big Problem

    HTML was never intended to contain tags for formatting a document.
    HTML was intended to define the content of a document, like:
    <h1>This is a heading</h1>
    <p>This is a paragraph.</p>
    When tags like <font>, and color attributes were added to the HTML 3.2 specification, it started a nightmare for web developers. Development of large web sites, where fonts and color information were added to every single page, became a long and expensive process.
    To solve this problem, the World Wide Web Consortium (W3C) created CSS.
    In HTML 4.0, all formatting could be removed from the HTML document, and stored in a separate CSS file.
    All browsers support CSS today.

    CSS Saves a Lot of Work!

    CSS defines HOW HTML elements are to be displayed.
    Styles are normally saved in external .css files. External style sheets enable you to change the appearance and layout of all the pages in a Web site, just by editing one single file!


  • Look at Example 1
  • Look at Example 2

CSS Syntax

A CSS rule has two main parts: a selector, and one or more declarations:

The selector is normally the HTML element you want to style.
Each declaration consists of a property and a value.
The property is the style attribute you want to change. Each property has a value.

CSS Example

A CSS declaration always ends with a semicolon, and declaration groups are surrounded by curly brackets:
p {color:red;text-align:center;}
To make the CSS more readable, you can put one declaration on each line, like this:



Try it yourself »

CSS Comments

Comments are used to explain your code, and may help you when you edit the source code at a later date. Comments are ignored by browsers.
A CSS comment begins with "/*", and ends with "*/", like this:
/*This is a comment*/
/*This is another comment*/

Do-It-Yourself Website Builder For Your Small Business

Many people may not be aware of the fact that a Do-It-Yourself (DIY) Website builder can be the perfect solution for building a website independently. This can be especially very useful for small business owners, individual entrepreneurs, and startup organizations etc who want to build their websites in an affordable manner. A robust DIY Website Builder tool is generally available online and which is easy-to-use so that even a non-technical person can easily create an effective website, without seeking any help from a website designer. It will take a few minutes to create a full-fledged website and you don’t have to pay for expensive web designing fees that most of the web designers charge today.
Besides saving your time and cost, a website builder tool can offer you tremendous designing possibilities. Such a tool usually has thousands of unique designs and templates that can help an individual or a business owner to help develop a personalized website with highly distinctive features. You don’t need any designing skills, but you can choose a unique template, with permutation and combination of scores of elements, essential for designing a website. Only you need to choose a domain name and a web hosting provider and your website will be up in minutes. This could be an ideal and cost-effective option, if you want to start an online business from home. You can build your website and start selling your products to a wider customer base across the world.
Most of the web hosting companies offer DIY Website Builder tools to their clients who purchase web hosting solutions from them. In this manner, these companies intend to give the complete solution to a client besides providing them with web hosting services. At the same time, a client finds it as a good option to build a website and host it with the company at affordable prices. If you choose a combo offer of a DIY builder and web hosting with such a company, it will prove extremely affordable for you. By paying a nominal cost for their web design tool, you get a website-building solution for yourself.
Today, a website has been considered as an essential tool for marketing and selling a wide range of products and services to a large number of customers available online. Building e-commerce websites has become a hot business trend, with the consumer’s growing willingness of buying products and services online and also a business owner can enjoy the highest margins by doing business online, instead of starting a physical store. But what may bother many of them is the startup cost of building a creative and feature-rich website. This cost can be suitably reduced by taking help of a DIY Website Builder tool which is often very simple to use and affordable too.
Such a website building tool provides you with the opportunity to build an online shop for buying and selling products and services online. A website builder enables you to build a website to enter into the lucrative market of online business in a cost-effective manner that you will always appreciate such a tool for their user-friendly features.

Cloud Storage: Finding the Right Provider

If you are techno-savvy, you recognize the importance of having a good backup for your data.
If you are really hardcore, you could have a separate hard drive, specifically for your data, that you can easily swap into a new machine of your main drive goes bad.
What happens if you have a fire, or a flood, or a lightning strike from a summer thunder storm. In fact, lightning strikes result in thousands of dollars in claims every year, for damaged computers and electronics.
No matter how elaborate your backup plan, if all of your data is stored in your home, it is vulnerable.
Storing your data in a secure, offsite location is the best way to protect it from loss or damage. Large corporations and some small businesses use providers like LSI for their offsite storage and networking needs. Some services can be cost prohibitive to the individual user.
This is where cloud computing comes in. Cloud computing lets you store your data on a secure site for a fraction of the cost.
Choosing Your Cloud Provider
These days your choices for cloud providers are wide and varied. If you use the latest Microsoft operating system, it has cloud storage built in in the form of the Microsoft. If you use Amazon Prime, you can store your data on the Amazon Cloud. Google, in addition to Google+ and other products, also the Google Drive, and there is also DropBox.  And these are only a few of the options available.
Most cloud providers offer a certain amount of storage space free. Google Drive and Amazon both offer 5GB of free storage, Dropbox offers 2GB, and Microsoft offers a whopping 25GB.
Beyond that, you can pay a fee for additional space, depending on how much you think you will need. If you want to backup a lot of music and video files, you could need several hundred GB of space, and that’s where the costs add up.
Dropbox charges $9.99 per month for up to 100GB of storage, and as much as $49.99 per month for 500GB.
Google drive offers 100GB for $4.99 per month, and you can get 1TB (terabyte) for $49.99 per month.
Microsoft, which offers the most free storage up front, offers a maximum of 100GB of additional storage for $50 per year.
Amazon offers a maximum of 100GB of space for $500 per year (or approximately $42 per month). However, Amazon also has its Cloud Player Premium which stores 250,000 imported songs for $24.99 per year. Music purchased at amazon is automatically stored in the cloud player and does not count toward the imported songs limit, and music storage is separate from your drive storage.
If most of your data is music, the Amazon Cloud Player could be your best option, with the free 5GB cloud storage for your documents. If your documents use more than 5GB but less than 25GB, consider splitting your storage between two providers – Amazon for the music and Microsoft’s free 25GB storage for your documents.
Most cloud providers also offer an app that allows you to access your cloud storage from your computer or mobile device and all of the products featured are fairly similar in that respect.
Other Features:
Do you want straight document storage or will you need to synch changes and upgrades among multiple users? If you want straight storage, a product like Drop Box or Amazon’s cloud could be all you need. But, if you are planning to share and edit documents with other people, and link your drive storage to other products like blogs or online faxing, then Google and Microsoft are a better option.

Researchers create 3Gbps LiFi network with LED bulbs

Researchers at the Fraunhofer Henrich Hertz Institute (HHI) in Germany have successfully transmitted data at 3Gbps using conventional LED bulbs in a laboratory setting. In a real-world setting (at a trade fair), the same system was capable of 500Mbps.
The concept of visible light communications (VLC), or LiFi as it is sometimes known, has received a lot of attention in recent years, mostly due to the growing prevalence of LED lighting. Unlike incandescent and fluorescent bulbs, LEDs are solid-state electronics, meaning they can be controlled in much the same way as any other electronic component, and switched at a high speed. VLC is essentially WiFi — but using terahertz radiation (light) instead of microwaves (WiFi). Instead of oscillating a WiFi transmitter, VLC oscillates an LED bulb — and of course, on the receiving end there’s a photodetector instead of an antenna.
Now, unfortunately the Fraunhofer press release is almost completely devoid of detail, except for the 3Gbps bit — but we do have the technical specifications of Fraunhofer’s previous VLC system, which the 3Gbps system is based on. The previous VLC system was capable of transmitting up to 500Mbps over four meters (13 feet), or 120Mbps over 20 meters (67 feet). Rather than actually using a standard LED bulb, Fraunhofer’s VLC system is a black box, with an LED and photodetector on the front, and an Ethernet jack on the back to connect it to the rest of the network. In this system, the hardware only allowed for 30MHz of bandwidth to be used, limiting the total throughput.
To reach 3Gbps, the HHI researchers have found a way of squeezing 180MHz of bandwidth out of the LEDs — and instead of using just one LED, they now use three different colors. It is not clear whether this new technique has a higher or lower range than the previous, but it is likely the same. In real-world testing at a trade fair, with less-than-optimal atmospheric conditions, 3Gbps becomes 500Mbps — still pretty darn fast.
Visible light communication has a slew of advantages. In essence, LiFi can turn any LED lamp into a network connection. LiFi, by virtue of operating at such high frequencies (hundreds of terahertz), is well beyond the sticky tentacles of the wireless spectrum crunch and regulatory licensing. For the same reason, LiFi can be used in areas where there’s extensive RF noise (conventions, trade fairs), or where RF noise is generally prohibited (hospitals, airplanes). The Fraunhofer researchers even claim that VLC improves privacy, because your signal can be easily obscured from prying eyes with opaque materials — but as you can imagine, that’s also a tick in the “con” column as well.
Moving forward, we’re still waiting for the first commercial LiFi LED bulbs and LiFi-equipped laptops/smartphones to come to market. There are a few startups that are making headway, and numerous research groups, but no one seems to have a definitive roadmap for commercial products. With so many possible uses, from street lamp-to-car communications through to ultra-fast short-range communications, and the growing maturity of LED lighting, it’s really just a matter of time until LiFi becomes a reality.

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Wednesday, 3 July 2013


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