Thursday, April 25, 2013

How GPS Works

What is GPS? Do you know how GPS works? What’s the secret behind the near-pinpoint accuracy that it offers? Keep reading to learn about the impressive thought that went into building this magnificent navigational system.Read more

Saturday, April 20, 2013

Why You Don’t Have To Use PayPal For Online Transactions: 5 PayPal Alternatives

Online shopping and online purchases have grown into something so important in many of our lives that it’s strange, at least for me, to think of a world where it doesn’t exist. PayPal is one service that really pioneered that world, especially in terms of purchasing without needing a credit card, debit card, or gift card. But are there any viable alternatives if you don’t like PayPal. Read more

Thursday, April 18, 2013

How Do Search Engines Work?

To many people, Google IS the internet. It’s the default homepage and the first port of call before accessing any site. It’s arguably the most important invention since the Internet itself. Without search engines, content would all be hand picked – just like newspapers and magazines. And while search engines have changed a lot since those first humble beginnings – and Google certainly isn’t the only search engine out there – the underlying principles are the same as they always were.

Do you know how search engines work? There are three basic stages for a search engine: crawling – where content is discovered; indexing, where it is analysed and stored in huge databases; and retrieval, where a user query fetches a list of relevant pages.

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Wednesday, April 17, 2013

8 Ways To Identify Unknown File Types

The problem with unknown file types is not their obscurity. The concern is that they may be dangerous. The threat comes from email attachments, unsecured flash drives, and the old one – rash downloads. Downloading an unknown file type is just as dangerous as downloading from an unknown source. Unknown file types can be benign of course, but what if they are potential landmines? Identification before action should be the way to go for the nimble witted. Identifying unknown file types is always a recommended security precaution. Read more

Friday, April 12, 2013

7 Things You Need to Know About Bitcoin

Bitcoins are all the buzz. The virtual currency is riding a rollercoaster of speculation, rising exponentially in value and reaching a high of $260 this Wednesday before plummeting to $130. What’s more, the largest bitcoin exchange in the world just survived a coordinated hack attack, and bitcoin-generating malware is spreading across Europe like wildfire via Skype.

Yet despite all the sound and fury surrounding this made-up money, most people have a hard time understanding exactly what bitcoins are—and how they work. This is troubling, especially if you’re thinking of investing your own time and money in the Bitcoin phenomenon.

Starting your own bitcoin wallet isn’t necessarily a bad idea. Bitcoins aren’t tied to the fortunes of any single nation’s economy. They’re easy to exchange, and they aren’t subject to transaction fees. But you need to know a few important things before throwing your money into the volatile bitcoin market. You need to understand how the Bitcoin system works, where it succeeds, and where it’s weak. Read more

12 easy PC tasks you should be doing (but aren't) | PCWorld

Computers may have become a lot more user-friendly over the past decade, but they’re still far from perfect—PCs require a certain amount of configuration and maintenance to operate at their full potential. Unfortunately, because we humans are also far from perfect, we frequently don’t put in the work we should, and we end up with a slower, sloppier, less secure machine as a result.

No more excuses! Whipping your PC into the best shape it can be requires but a dozen simple tasks. None are complicated, most take a matter of minutes, and all will have a major effect on how well your computer works for you. Even better, by the time you’re finished you’ll never have to worry about doing many of these tasks again. Read more

Thursday, April 11, 2013

The 5 biggest online privacy threats of 2013 | PCWorld

Your online life may not seem worth tracking as you browse websites, store content in the cloud, and post updates to social networking sites. But the data you generate is a rich trove of information that says more about you than you realize—and it’s a tempting treasure for marketers and law enforcement officials alike.

Battles have long raged over how third parties can access and use your data. This year, your online privacy faces new threats, as a result of emerging technologies and new regulatory efforts that could affect how your Web-based life is protected... or exposed, Read more