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Many of the questions potential new hires ask are throwaways. But not these. Getty 12K in Share
Okay – you know your variables and you know you declarations. You can write something more advanced than ‘Hello World’. But if you think that you know every programming logic in the world, think again.
OK, we won't bore you by telling you what Node.js is again or why it's so dang hot . You want to learn Node.js? There's no completely finished Node.js book out there that we're aware of. But there's one complete book in rough draft form, two partial guides and several other great resources for learning Node.js. No more excuses: Try Node.js for $0.02 or less in just a few minutes
Facebook is the most popular social network on the internet. It's a million things to nearly a billion people, and while Facebook does a handful of things competently, it's truly great at next to nothing. Note: To a large extent, you can also substitute Google(+) for Facebook throughout this post. I'm focusing on Facebook because it's The Social Network. The Problem
Asus has taken the unusual step to send us a full Q&A document on its involvement with the Google Nexus 7 tablet, lifting the lid on the design and collaboration process with Google. The document provides fascinating insight into the design process behind the Nexus 7 – incredibly the idea for the device was only born in January. "At CES 2012, the executives of Google and Asus met up to discuss future cooperative opportunities and the Nexus 7 was born," says Asus in the document.
Electronic devices can use lots of different methods to detect a person's input on a touch screen . Most of them use sensors and circuitry to monitor changes in a particular state. Many, including the iPhone, monitor changes in electrical current. Others monitor changes in the reflection of waves. These can be sound waves or beams of near-infrared light .
For years, standard hard drives have been the speed limiting factor in overall system responsiveness. While hard drive size, RAM capacity, and CPU speed have grown almost exponentially, the spinning speed of a hard drive, i.e. the factor defining how fast it can be read, has increased only moderately in comparison. If you really want to give your computer a speed boost, try switching to a solid state drive, short SSD. Unlike traditional magnetic hard disk drives, SSDs do not employ any moving mechanical components. Instead, they rely on NAND-based flash memory, which is much faster than HDDs for several reasons.
Hackers weren’t always known for being social misfits and Internet ninjas. In fact, the word “hacker” was originally a positive term, indicating someone who had an extensive knowledge of computers and computer networks. It wasn’t until Hollywood got their hands on the word that it became synonymous with “criminal computer expert.” In this article, I’m going to jump back to the original definition and explore the world of “good hackers,” otherwise known as “white hat hackers.” If you’re looking to learn more about hackers of the evil and malicious variety, you may want to check out my previous article about world famous black hat hackers . Let’s take a look at five of the most influential computer experts that have helped shape the world to be what it is today.
The Bendix G-15 General Purpose Digital Computer System Documentation What we have , What else is available , and What we don't have Last updated: 3 July 2010: David Green What we have
Flickr: Mark Anderson At a recent conference, professor Kristin Fontichiaro described watching a seven-year-old work his way through do-it-yourself resources online. Because he was comparing concrete items (e.g., his circuit versus that in the tutorial), and not abstract concepts, the student immediately understood what was a credible resource and what was not.
If you're sitting at a desk reading this on a computer screen, take note: reducing sedentary behaviors like sitting and watching TV may have the potential to increase your life expectancy, even if you get regular exercise. According to a study published in the online journal BMJ Open if you sit for more than three hours a day, your life expectancy is lowered by about two years. Throwing in a few hours of watching TV can add another 1.4 years. SEE ALSO: Fitness App Lets Charities Cash in on Your Exercise Routine
Finally, here's a working tutorial to disable the SEEN message from appearing on Facebook chat. It was easier earlier to pretend as if you were offline, if someone you don't like to chat with started a conversation. But after the SEEN message started appearing, people don't usually do so. Your friends know that you have seen the message but still have not replied to it and that might not be the wisest thing to do. Don't worry though, here's a solution to the problem to prevent your friends from knowing that you have already seen the message. Follow this guide depending upon your browser.
This wireless system is almost 8,000 times faster than your fastest wired home Internet connection that can only manage up to 300Mbps. Literally, the output is the same as transmitting seven full Blu-ray movies per second. This works on the principle of electromagnetic waves that usually carry data are twisted into vortex beams. Extreme Tech describes the process as: These twisted signals use orbital angular momentum (OAM) to cram much more data into a single stream.
<img class="alignnone size-full wp-image-117748" title="cat-watching-computer-flickr-peasap" src="http://www.wired.com/images_blogs/wiredscience/2012/06/cat-watching-computer-flickr-peasap.jpg" alt="" width="660" height="383" /> By Liat Clark, Wired UK When computer scientists at Google’s mysterious X lab built a neural network of 16,000 computer processors with one billion connections and let it browse YouTube, it did what many web users might do — it began to look for cats. The “brain” simulation was exposed to 10 million randomly selected YouTube video thumbnails over the course of three days and, after being presented with a list of 20,000 different items, it began to recognize pictures of cats using a “deep learning” algorithm. This was despite being fed no information on distinguishing features that might help identify one.
Takeaway: Patrick Lambert looks at the rash of stolen password exploits and how websites are trying to move beyond passwords only as a security check. We’ve talked a lot about passwords. In fact, they have been in the news like crazy in the past couple of weeks. First there was the LinkedIn incident , where over 6 million LinkedIn account names and unsalted SHA1 passwords were released. The fact that they were unsalted meant that it was trivial for hackers to recover all of the basic ones, and because they were hashed using SHA1, it meant that most nine-character or less passwords could be cracked inside of a few hours. Then, we saw the same story repeat itself for various other companies like Last.fm and the popular matching site eHarmony.