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The next time you visit a cafe to sip coffee and surf on some free Wi-Fi, try an experiment: Log in to some of your usual sites. Then, with a smile, hand the keyboard over to a stranger. Now walk away for 20 minutes. Remember to pick up your laptop before you leave.

The open source hardware platform Arduino has been the central platform of my electronics class since the beginning of 2008 and I've learned a lot in that time. I use the Arduino to teach some basic programming and introductory electronics concepts. This course led me to create a website (http://electronics.flosscience.com/) to help support my students as well as others who might want to use this platform in education. Now I'm ready for the next step.

Rackspace has put together a great infographic on the "Evolution of Computer Languages" so you can take a trip down memory lane or learn about it for the first time. If you are interested in more programming choices for kids take a look here.

Tired of your Wi-Fi cutting out every time you take your laptop into the bathroom with you? IEEE (also known as the Institute of electronics geeks) has just released a new, official standard for 802.22 Wi-Fi, and this bad boy can cover 12,000 square miles with just one single base station.

I have spent a lot of time throughout the years researching and collecting facts and stimulus materials on the topic of Computer Viruses. Recently when I was watching my regular TED talk on my phone I watched this talk by Mikko Hypponen. I found it fascinating for the way in which he not only explores and shows some of the history of viruses but also talks of the social and ethical implications of the contemporary viruses being releases. He explores the use of viruses from a cyber-crime and organised-crime perspective.

Schmidt criticises division between science and arts and says UK 'should look back to glory days of Victorian era'

"This comprehensive primer on the internal operations of WebKit and Gecko is the result of much research done by Israeli developer Tali Garsiel. Over a few years, she reviewed all the published data about browser internals (see Resources) and spent a lot of time reading web browser source code."

Most of these products fizzled due to market competition, lack of consumer demand or just plan clunkiness. Others were cool for a time (especially if Leonard Nimoy said so), but were quickly surpassed by other groundbreaking technology.

In this post I will offer some guidance based on my own readings. The papers chosen herein are not intended to act as a C.S. hall of fame, but instead hope to accomplish the following: All papers are freely available online (i.e. not pay-walled) They are technical (at times highly so) They cover a wide-range of topics The form the basis of knowledge that every great programmer should know, and may already

There's a misconception that maintenance and technical support services are only about on-site repair or necessary when something breaks. Given today's complex technology infrastructure with multiple systems, platforms and vendors, you need more. Learn how IBM's proactive approach to support can save you time and money and help improve the availability of critical systems.

The London 2012 Olympic Games will open in nine months time, and - away from the glories anticipated on the track and field - consideration is being made about how to defend the world's leading sporting event from cyber-attack.

If your PC's been humming along under your desk for more than a year or two, I've got news for you: Chances are inside that case, half a dozen dust bunnies are dancing around your hard drive, leeching onto your CPU fan and fluttering about your motherboard having a grand old time. This is not good. 

Test any website and see real-time if it's censored in China.

Good article about real world database issues. Likely best for 4U, unless you just want students to get an overview of the complexity.

In computer science, linear search or sequential search is a method for finding a particular value in a list, that consists of checking every one of its elements, one at a time and in sequence, until the desired one is found.

Interesting combination of Computer Technology and GIS.

If there's going to be a museum of the Internet, it may as well be online. The Big Internet Museum has launched with the aim of taking that mantle.

All of the visuals in the above video were created using NyArtoolkit for Processing. NyARToolkit is an augmented reality toolkit built with 100% pure Java. It is derived from ARToolkit-2.72.1. Like Processing itself it's open source and free! In this tutorial you will learn how to use it to place computer generated imagery correctly onto real world footage. To do this in real-time NyArtoolkit uses markers - black and white images - to determine the three-dimensional position and orientation in the real world. Most likely you will have seen something like this before, but now you will learn how to do it yourself using freely available software.

On clicking Gmail's "Compose" button, a window appears in the right corner of the screen. Well, this window has new options now. In the top-right corner of that "Compose" window, you will find three icons: Minimize, Full-screen and Close. By clicking the one in middle, window gets enlarged.