Michael Ross writes "Since its introduction in 1994, JavaScript has largely been utilized within web browsers, which limited JavaScript programmers to client-side development. Yet with the recent introduction of Node.js, those programmers can leverage their skills and experience for server-side efforts. Node.js is an event-based framework for creating network applications — particularly those for the Web. Anyone interested in learning this relatively new technology can begin with one of numerous resources, including Sams Teach Yourself Node.js in 24 Hours." Keep reading for the rest of Michael's review.

First time accepted submitter e-sas writes "Researchers from the University of Bristol have built a new type of display which allows both a shared view and a personalised view to users at the same time. Through the two view-zones, PiVOT provides multiple personalized views where each personalized view is only visible to the user it belongs to while presenting an unaffected and unobstructed shared view to all users. They conceive PiVOT as a tabletop system aimed at supporting mixed-focus collaborative tasks where there is a main task requiring the focus of all individuals of the group but also concurrent smaller personal tasks needing access to information that is not usually shared e.g. a war-room setup. Imagine you and your friends playing multiplayer Starcraft on one big screen instead of individual computer screens!"

thatpythonguy writes "Core Python Application Programming is the latest addition to a growing corpus of literature serving a growing number of Python programmers and engineers. This Prentice Hall book of 800+ pages covers some traditional areas and touches upon some new ones. I typically do not spend much time speaking about the author of the books that I review; however, this occasion warrants an exception. And it is not because Wesley Chun used Python over a decade ago to build the address book and spell-checker for Yahoo! Mail nor is it because he holds a minor degree in music from UC Berkeley in classical piano. Rather, it is because he is both an engineer and an instructor. In other words, he was not pulled from his geek duties and asked to become a pseudo-writer; he already does that for his consulting practice, authoring (or co-authoring) several books and articles on Python (including "Python Web Development with Django") as well as starring in his own training video (entitled "Python Fundamentals"). The result of that experience is a writing style that is technically sound, yet accessible." Keep reading for the rest of Ahmed's review.

New submitter SIGSTOP writes "The LINC [OpenFlow 1.2 software-based] switch has now been released as commercial friendly open source through the FlowForwarding.org community website, encouraging users and vendors to use LINC and contribute to its development. The initial LINC implementation focuses on correctness and feature compliance. Through an abstraction layer, specialized network hardware drivers can be easily interfaced to LINC. It has been implemented in Erlang, the concurrent soft-real time programming language invented by Ericsson to develop their next generation networks."

First time accepted submitter EW87 writes "Shortly after a federal raid today brought down the file sharing service Megaupload, hackers aligned with the online collective Anonymous have shut down sites for the Department of Justice, Universal Music Group and the RIAA. 'It was in retaliation for Megaupload, as was the concurrent attack on Justice.org,' Anonymous operative Barrett Brown tells RT on Thursday afternoon."

Wednesday is here, and with it sites around the internet are going under temporary blackout to protest two pieces of legislation currently making their way through the U.S. Congress: the Stop Online Piracy Act (SOPA) and the Protect-IP Act (PIPA). Wikipedia, reddit, the Free Software Foundation, Google, the Electronic Frontier Foundation, imgur, Mozilla, and many others have all made major changes to their sites or shut down altogether in protest. These sites, as well as technology experts (PDF) around the world and everyone here at Slashdot, think SOPA and PIPA pose unacceptable risks to freedom of speech and the uncensored nature of the internet. The purpose of the protests is to educate people — to let them know this legislation will damage websites you use and enjoy every day, despite being unrelated to the stated purpose of both bills. So, we ask you: what can you do to stop SOPA and PIPA? You may have heard the House has shelved SOPA, and that President Obama has pledged not to pass it as-is, but the MPAA and SOPA-sponsor Lamar Smith (R-TX) are trying to brush off the protests as a stunt, and Smith has announced markup for the bill will resume in February. Meanwhile, PIPA is still present in the Senate, and it remains a threat. Read on for more about why these bills are bad news, and how to contact your representative to let them know it.

Note: This will be the last story we post today until 6pm EST in protest of SOPA.

New submitter RobinEggs writes "Some reviews of Bulldozer's server performance have arrived. Ars Technica has the breakdown, and the results are pretty ugly. Apparently Bulldozer fares just as poorly with servers as with desktops. From the article: 'One reason for the underwhelming performance on the desktop is that the Bulldozer architecture emphasizes multithreaded performance over single-threaded performance. For desktop applications, where single-threaded performance is still king, this is a problem. Server workloads, in contrast, typically have to handle multiple users, network connections, and virtual machines concurrently. This makes them a much better fit for processors that support lots of concurrent threads. ... It looks as though the decisions that hurt Bulldozer on the desktop continue to hurt it in the server room. Although the server benchmarks don't show the same regressions as were found on the desktop, they do little to justify the design of the new architecture.' It's probably much too early to start editorializing about the end of AMD, or even to say with certainty that Bulldozer has failed, but my untrained eye can't yet see any possible silver lining in these new processors."

After his amateur rocket flight in the desert (to 121,000 feet!), you asked rocket enthusiast Derek Deville about the project. Derek's responded to a selection of the best of those questions; read on below for his replies.

MrSeb writes with an article in Extreme Tech about the Titan supercomputer. From the article: "Cray, AMD, Nvidia, and the Department of Energy have announced that the Oak Ridge National Laboratory's Jaguar supercomputer will soon be upgraded to yet again become the fastest HPC installation in the world. The new, mighty-morphing computer will feature thousands of Cray XK6 blades, each one accommodating up to four 16-core AMD Opteron 6200 (Interlagos) chips and four Nvidia Tesla 20-series GCGPU coprocessors. The Jaguar name will be suitably inflated, too: the new behemoth will be called Titan. The exact specs of Titan haven't been revealed, but the Jaguar supercomputer currently sports 200 cabinets of Cray XT5 blades — and each cabinet, in theory, can be upgraded to hold 24 XK6 blades. That's a total of 4,800 servers, or 38,400 processors in total; 19,200 Opterons 6200s, and 19,200 Tesla GPUs. ... that's 307,200 CPU cores — and with 512 shaders in each Tesla chip that's 9,830,400 compute units. In other words, Titan should be capable of massive parallelism of more than one million concurrent operations. When the server is complete, towards the end of 2012, Titan will be capable of between 10 and 20 petaflops, and should recapture the crown of Fastest Supercomputer in the World from the Japanese 'K' computer."

Last week you asked the Director of the Raspberry Pi Foundation, Eben Upton, about developing an ultra-low-cost computer and running a charitable organization. Below you'll find his answers. Thanks go out to a busy Eben for responding so quickly.

Samfer writes "On Friday August 12th 2011, the results for the final ISO ballot on C++0x came in, and the ISO C++ Standards Committee were unanimous in favor of approving the new C++0x (for now unofficially known as C++11) object-oriented programming language standard which is intended to replace the existing C++ standard. The new standard is to offer new and improved features such as lambda functions, concurrent programming functionality, direct data field initialization, and an improved standard library to name but a few." Although I haven't heavily used C++ in years, it is nice to see a decade long effort finally come to fruition. Especially nice is the support for type inference which should save quite a few people from RSI and make refactoring code a bit less obnoxious.

MojoKid writes "Promise Technology recently launched the first Thunderbolt-compatible devices; the company's Pegasus RAID R4 and R6 storage solutions can now be ordered from the Apple Store. There's a catch, however. In order to use either storage array, one must first purchase a cable directly from Apple. The company has priced the two-meter cable at $50. As it turns out, Thunderbolt uses what's called an active cable. Inside the cable there's a pair of Gunnum GN2033 transceivers. The GN2033 is a tiny, low power transceiver chip designed to be placed inside the connectors at either end of a Thunderbolt cable, enabling dual bidirectional 10Gb/s concurrent links over narrow-gauge copper wires. The cable's $50 price may be justified, but it's also a further reminder of why Thunderbolt may follow FireWire's path into obsolescence. Apple is the only company currently selling Thunderbolt cables."

setori88 writes "Programming for concurrency makes sense in developing for both large scales (cloud computing) and small (multicore CPUs). Some languages were designed for concurrency and distribution; One of those languages is Oz, which provides advanced primitives regarding concurrency and distribution. Oz is mostly declarative, a paradigm that encompasses functional and logic programming. Despite its innovative features and expressiveness, Oz never made it into the wide developer community; one reason is its unusual syntax." Read on to learn about an effort to bring Oz's concurrency features to more programmers.

An anonymous reader sends in an IBM DeveloperWorks backgrounder on Kernel Shared Memory in the 2.6.32 Linux kernel. KSM allows the hypervisor to increase the number of concurrent virtual machines by consolidating identical memory pages. The article covers the ideas behind KSM (such as storage de-duplication), its implementation, and how you manage it.

alphadogg writes "Hacker mastermind Albert Gonzalez was sentenced Thursday in US District Court to two concurrent 20-year stints in prison for his role in what prosecutors called the 'unparalleled' theft of millions of credit card numbers from major US retailers. US District Court Judge Patti B. Saris announced the concurrent sentences in two 2008 cases against Gonzalez, 28, a Cuban-American who was born in Miami, where he lived when the crimes were committed. Gonzalez and co-conspirators hacked into computer systems and stole credit card information from TJX, Office Max, DSW and Dave and Buster's, among other online retail outlets, in one of the largest — if not the largest — cybercrime operations targeting that sort of data thus far. They then sold the numbers to other criminals. Gonzalez pleaded guilty to conspiracy charges in two cases related to those thefts last December and the following day entered a guilty plea in a third case involving hacking into computer networks of Heartland Payment Systems and the Hannaford Supermarkets and 7-Eleven chains."

An anonymous reader points out this article about "...how a big site like MySpace uses thousands of cloud computing cores to do performance testing on its live site. There are some really great numbers in there from the performance tests, like generating 16GB/second of bandwidth and 77,000 hits/second during testing (not including the live traffic on the site at the time)."

Congressman Emanuel Cleaver (D-MO), who grew up with the rest of his 149 member family living in a shoe box in the middle of the road, would like everyone to stop complaining next Wednesday. He's co-sponsored House Concurrent Resolution 155, which designates the day before Thanksgiving as "Complaint Free Wednesday." He states, "From time to time, we all experience anxiety, frustration, stress, and regret. And often, we respond to these feelings with a criticism or a complaint. Regrettably, complaining keeps people stuck on current problems, inhibiting them from thinking constructively to find solutions. Research has also shown that complaining can be harmful to one’s emotional and physical health; relationships; and can limit professional career success."

Many readers are sending in the news about Go, the new programming language Google has released as open source under a BSD license. The official Go site characterizes the language as simple, fast, safe, concurrent, and fun. A video illustrates just how fast compilation is: the entire language, 120K lines, compiles in under 10 sec. on a laptop. Ars Technica's writeup lays the stress on how C-like Go is in its roots, though it has plenty of modern ideas mixed in: "For example, there is a shorthand syntax for variable assignment that supports simple type inference. It also has anonymous function syntax that lets you use real closures. There are some Python-like features too, including array slices and a map type with constructor syntax that looks like Python's dictionary concept. ... One of the distinguishing characteristics of Go is its unusual type system. It eschews some typical object-oriented programming concepts such as inheritance. You can define struct types and then create methods for operating on them. You can also define interfaces, much like you can in Java. In Go, however, you don't manually specify which interface a class implements. ... Parallelism is emphasized in Go's design. The language introduces the concept of 'goroutines' which are executed concurrently. ... The language provides a 'channel' mechanism that can be used to safely pass data in and out of goroutines."

Slashdot regular Bennett Haselton writes "Websense, a US-based Internet-censoring software maker, claims not to sell to foreign governments that are censoring Internet access for all of their citizens. But the OpenNet Initiative reports that national ISPs in Yemen have been using Websense to filter Internet access for at least the past four years. Will Websense revoke their license? And what would happen then?" Update: 08/10 21:01 GMT by KD : Bennett adds, "After the story ran, Websense sent me this update." "Since we were informed about the potential use of our products by Yemeni ISPs based on government-imposed Internet restrictions in Yemen, we have investigated this potential non-compliance with our anti-censorship policy. Because our product operates based on a database system, we are able to block updated database downloads to locations and to end users where the use of our product would violate law or our corporate policies. We believe that we have identified the specific product subscriptions that are being used for Web filtering by ISPs in Yemen, and in accordance with our policy against government-imposed censorship, we have taken action to discontinue the database downloads to the Yemeni ISPs."

An anonymous reader writes "Chris Wilson reviews Kodu, the new XBox game that he calls 'Logo on Steroids.' The game allows you to build a world and program every object in it with an in-house graphical language, making the game a primitive example of 'reactive state machines' in a 'multi-agent concurrent system.' It sounds like what we call 'application specific integrated circuits' in engineering, where every line of code runs in parallel."