An anonymous reader writes: The record for smallest computer implementation of chess on any platform was held by 1K ZX Chess, which saw a release back in 1983 for the Sinclair ZX81. It uses just 672 bytes of memory, and includes most chess rules as well as a computer component to play against. The 32-year-old record has been beaten this week by the demoscene group Red Sector Inc. They have implemented a fully-playable version of chess called BootChess in just 487 bytes (readme file including source code).
alphadogg writes: The FCC on Tuesday warned that it will no longer tolerate hotels, convention centers or others intentionally interfering with personal Wi-Fi hotspots. This issue grabbed headlines last fall when Marriott International was fined $600,000 for blocking customer Wi-Fi hotspots, presumably to encourage the guests to pay for pricey Internet access from the hotel.
Deathspawner writes: Following its huge Windows 10 event last Wednesday, Microsoft released a brand-new preview build to the public, versioned 9926. We were told that it'd give us Cortana, Microsoft's AI assistant, as well as a revamped Start menu and updated notifications pane. But as it turns out, that's not even close to summing up all that's new with this build. In fact, 9926 is easily the most substantial update rolled out so far in the beta program, with some UI elements and integral Windows features seeing their first overhaul in multiple generations.
HughPickens.com writes: Halfway up the Shard, London's tallest skyscraper, you are asked to step out of the elevator at the transfer floor, or "sky lobby," a necessary inconvenience in order to reach the upper half of the building, and a symptom of the limits of elevators today. To ascend a mile-high (1.6km) tower using the same technology could necessitate changing elevators as many as 10 times. Elevators traveling distances of more than 500m [1,640 ft] have not been feasible because the weight of the steel cables themselves becomes so great. Now, after nine years of rigorous testing, Kone has released Ultrarope — a material composed of carbon-fiber covered in a friction-proof coating that weighs a seventh of the steel cables, making elevators of up to 1km (0.6 miles) in height feasible to build. Kone's creation was chosen to be installed in what's destined to become the world's tallest building, the Kingdom Tower in Jeddah, Saudi Arabia. When completed in 2020, the tower will stand a full kilometer in height, and will boast the world's tallest elevator at 660m (2,165ft). A 1km-tall tower may seem staggering, but is this the build-able limit? Most probably not, according to Dr. Sang Dae Kim. "With Kingdom Tower we now have a design that reaches around 1 km in height. Later on, someone will push for 1 mile, and then 2 km," says Kim. He adds that, technically speaking, 2 km might be possible at the current time. Anything higher would require new materials and building techniques.
Nerval's Lobster writes: What does it take to become a great — or even just a good — software developer? According to developer Michael O. Church's posting on Quora (later posted on LifeHacker), it's a long list: great developers are unafraid to learn on the job, manage their careers aggressively, know the politics of software development (which he refers to as 'CS666'), avoid long days when feasible, and can tell fads from technologies that actually endure... and those are just a few of his points. Over at Salsita Software's corporate blog, meanwhile, CEO and founder Matthew Gertner boils it all down to a single point: experienced programmers and developers know when to slow down. What do you think separates the great developers from the not-so-fantastic ones?
An anonymous reader writes: A new study confirms the potential hazard of nearby gamma-ray bursts. It quantifies the probability of an event near Earth, and more generally in the Milky Way and other galaxies over time: "[Evolved] life as it exists on Earth could not take place in almost any galaxy that formed earlier than about five billion years after the Big Bang." This could explain the Fermi's paradox, or why we don't see billion-year-old civilizations all around us.
bearhuntz writes: Riot Games has been using League of Legends as a psychology lab to run scientific experiments and reduce toxic player behavior for a while now. This article explains some of the experiments they're doing, and what the results have been. "For example, one product is a restricted chat mode that limits the number of messages abusive players can type per match. It’s a temporary punishment that has led to a noticeable improvement in player behavior afterward —on average, individuals who went through a period of restricted chat saw 20 percent fewer abuse reports filed by other players. The restricted chat approach also proved 4 percent more effective at improving player behavior than the usual punishment method of temporarily banning toxic players. Even the smallest improvements in player behavior can make a huge difference in an online game that attracts 67 million players every month."
An anonymous reader writes: YouTube today announced it has finally stopped using Adobe Flash by default. The site now uses its HTML5 video player by default in Google's Chrome, Microsoft's IE11, Apple's Safari 8, and in beta versions of Mozilla's Firefox browser. At the same time, YouTube is now also defaulting to its HTML5 player on the web. In fact, the company is deprecating the "old style" Flash object embeds and its Flash API, pointing users to the iFrame API instead, since the latter can adapt depending on the device and browser you're using.
An anonymous reader writes: Lizard Squad, the hacking collaborative that went after the PlayStation Network, Xbox Live, and the North Korean internet last year, has now targeted Malaysia Airlines with an attack. Bloomberg links to images of the hacks (including the rather heartless 404 jab on its home page) and columnist Adam Minter wonders why Malaysia Airlines, which has had so much bad press in the past 12 months, was worthy of Lizard Squad's ire. In apparent answer, @LizardMafia (the org's reputed Twitter handle) messaged Mr. Minter this morning: "More to come soon. Side Note: We're still organizing the @MAS email dump, stay tuned for that."
astroengine writes: Astronomers have found a star system that bears a striking resemblance to our inner solar system. It's a sun-like star that plays host to a system of five small exoplanets — from the size of Mercury to the size of Venus. But there's something very alien about this compact 'solar system'; it formed when the universe was only 20 percent the age it is now, making it the most ancient star system playing host to terrestrial sized worlds discovered to date.
New submitter plate_o_shrimp sends word that Google has announced the next group of cities set to receive gigabit fiber infrastructure. They're concentrating on cities around four metro areas: Atlanta, Charlotte, Nashville, and Raleigh-Durham. "We’ve been working closely with city leaders over the past year on a joint planning process to get their communities ready for Google Fiber—and now the really hard work begins. Our next step is to work with cities to create a detailed map of where we can put our thousands of miles of fiber, using existing infrastructure such as utility poles and underground conduit, and making sure to avoid things like gas and water lines. Then a team of surveyors and engineers will hit the streets to fill in missing details. Once we’re done designing the network (which we expect to wrap up in a few months), we’ll start construction." Google also said they're currently looking into Phoenix, Portland, Salt Lake City, San Antonio, and San Jose.
An anonymous reader writes: A very serious security problem has been found and patched in the GNU C Library (Glibc). A heap-based buffer overflow was found in __nss_hostname_digits_dots() function, which is used by the gethostbyname() and gethostbyname2() function calls. A remote attacker able to make an application call to either of these functions could use this flaw to execute arbitrary code with the permissions of the user running the program. The vulnerability is easy to trigger as gethostbyname() can be called remotely for applications that do any kind of DNS resolving within the code. Qualys, who discovered the vulnerability (nicknamed "Ghost") during a code audit, wrote a mailing list entry with more details, including in-depth analysis and exploit vectors.
BarbaraHudson writes: Video game enthusiasts around the world participated in the Global Game Jam this past weekend. The event is a worldwide 48-hour hack-a-thon dedicated to inspiring creativity and building a working game from scratch in one weekend. Sponsored by companies like Intel, Microsoft, and Facebook, it's the largest event of its kind. All games entered for GGJ are released under a Creative Commons share, alter, no sell license. You can browse through the games and download their source files on the official website, and a couple of publications did quick hands-on playthroughs. "Although the club is focused on game development, not everyone participating was a computer programmer. Artists and graphic designers were present to help create characters and models for the games. The goal of Global Game Jam is to a stir up a global creative buzz in games while at the same time exploring the process of development."
New submitter cdysthe writes Almost two years ago, the Norwegian browser firm Opera ripped out the guts of its product and adopted the more standard WebKit and Chromium technologies, essentially making it more like rivals Chrome and Safari. But it wasn't just Opera's innards that changed; the browser also became more streamlined and perhaps less geeky. Many Opera fans were deeply displeased at the loss of what they saw as key differentiating functionality. So now Jon von Tetzchner, the man who founded Opera and who would probably never have allowed those drastic feature changes, is back to serve this hard core with a new browser called Vivaldi. The project's front page links to downloads of a technical preview, available for Linux, Mac OS X, and Windows. Firefox users who likewise prefer a browser with more rather than fewer features (but otherwise want to stick with Firefox) might also consider SeaMonkey, which bundles not just a browser but email, newsgroup client and feed reader, HTML editor, IRC chat and web development tools.
An anonymous reader writes What would be the best media to store a backup of important files in a lockbox? Like a lot of people we have a lot of important information on our computers, and have a lot of files that we don't want backed up in the cloud, but want to preserve. Everything from our personally ripped media, family pictures, important documents, etc.. We are considering BluRay, HDD, and SSD but wanted to ask the Slashdot community what they would do. So, in 2015, what technology (or technologies!) would you employ to best ensure your data's long-term survival? Where would you put that lockbox?
WheezyJoe writes Verizon agreed to a $5 million settlement after admitting that it failed to investigate whether its rural customers were able to receive long distance and wireless phone calls. The settlement is related to the FCC's efforts to address what is known as the rural call completion problem. Over an eight-month period during 2013, low call answer rates in 39 rural areas should have triggered an investigation, the FCC said. The FCC asked Verizon what steps it took, and Verizon said in April 2014 that it investigated or fixed problems in 13 of the 39 areas, but did nothing in the other 26. "Rural call completion problems have significant and immediate public interest ramifications," the FCC said in its order on the Verizon settlement today. "They cause rural businesses to lose customers, impede medical professionals from reaching patients in rural areas, cut families off from their relatives, and create the potential for dangerous delays in public safety communications." Verizon has been accused of letting its copper landline network decay while it shifts its focus to fiber and cellular service. The FCC is working a plan to protect customers as old copper networks are retired.
eldavojohn writes A turnover in the Greek government resulted from recent snap elections placing SYRIZA (Coalition of the Radical Left) in power — just shy of an outright majority by two seats. Atheist, and youngest Prime Minister in Greek history since 1865, Alexis Tsipras has been appointed the new prime minister and begun taking immediate drastic steps against the recent austerity laws put in place by prior administrations. One such step has been to appoint Valve's economist Yanis Varoufakis to position of Finance Minister of Greece. For the past three years Varoufakis has been working at Steam to analyze and improve the Steam Market but now has the opportunity to improve one of the most troubled economies in the world.
mi (197448) writes You heard the scare-mongering, you heard the governors and mayors closing public transit and declaring driving on public roads a crime. But it turned out to have been a mistake. Boston may have been hit somewhat, but further South — NYC and Philadelphia — the snowfall was rather underwhelming. Promised "2-3 feet" of snow, NYC got only a few inches. Is this an example of "better safe than sorry," or is government's overreach justified by questionable weather models exceeding the threshold of an honest mistake?
HughPickens.com writes The Washington Post reports that the intrusion by a recreational drone onto the White House lawn has exposed a security gap at the compound that the Secret Service has spent years studying but has so far been unable to fix. Commercial technology is available that can use a combination of sensitive radar and acoustic trackers to detect small drones, though coming up with an effective way to stop them has been more elusive. "To do something about the problem, you have to find it, you have to track it, you have to identify it and you have to decide what to do with it," says Frederick F. Roggero. "But especially in an urban environment, it would be tough to detect and tough to defeat kinetically without shooting it down and causing collateral damage." Most recreational drones, like the one that crashed Monday, weigh only a few pounds and lack the power to do much harm. Larger models that can carry payloads of up to 30 pounds are available on the market and are expected to become more common. The FAA imposes strict safety regulations on drones flown by government agencies or anyone who operates them for commercial purposes. In contrast, hardly any rules apply to people who fly drones as a hobby, other than FAA guidelines that advise them to keep the aircraft below 400 feet and five miles from an airport. "With the discovery of an unauthorized drone on the White House lawn, the eagle has crash-landed in Washington," says Senator Charles Schumer. "There is no stronger sign that clear FAA guidelines for drones are needed."
Required Snark writes NASA has funded a study of a geo-sychrounous orbit telescope that uses a half-mile diameter opaque disk to provide images with 1000 times the resolution of the Hubble. It uses diffraction at the edge of the disk to focus light, resulting in a very high quality image. It's named the Aragoscope, after the scientist Francois Arago, who first noticed how a disk affects light waves. "When deployed the Aragoscope will consist of an opaque disk a half mile in diameter parked in geostationary orbit behind which is an orbiting telescope keeping station some tens to hundreds of miles behind that collects the light at the focal point and rectifies it into a high-resolution image. 'The opaque disk of the Aragoscope works in a similar way to a basic lens,' says CU-Boulder doctoral student and team member Anthony Harness. 'The light diffracted around the edge of the circular disk travels the same path length to the center and comes into focus as an image.' He added that, since image resolution increases with telescope diameter, being able to launch such a large, yet lightweight disk would allow astronomers to achieve higher-resolution images than with smaller, traditional space telescopes."
한국LUG 사이트는 1024 x 768 해상도(운영자 노트북:14")에 최적화 되어 있습니다. : LINUX FANSITE
WWW.LUG.OR.KR Server is made by CentOS Linux, P4 1.8G, Memory 512MB, Main HDD 160GB, Backup HDD 40GB and LAMP, qmail MTA.
CentOS Linux & Mozilla Firefox UTF-8 Base Created.
1998-2015 www.lug.or.kr Directed By Great Dragon, Kim.
LUG 포인트 정책 : [회원가입 : +100점] [로그인(하루한번) : +100점] [글쓰기 : +20점] [코멘트 : +10점] [다운로드 : -200점] [질문 포인트 : 최소 200점]
데스크탑 프로그래밍(gcc, g++, wxGTK[wxWidgets] 등)은 "Fedora"를 사용하고, 서버 운영(WEB, FTP 등)은 "CentOS"를 사용하시길 권장합니다.
도전하는자, 자신을 투자하는자만이 뜻하는바를 이룰 수 있다.
Information should be Exchanged with Interactive, not One Way Direction.
관리자 Be Maker!
인생에서, 100% 순이익을 보장하는건 없다. 1%의 지식을 나눔으로써, 가끔씩 손해볼 필요도 있다.
그대가 가진 1%의 지식만이라도 공공을 위해 포스팅하라. 손해본다는 생각이 앞선다면 그대의 인생은 힘들어질것이다.
자신이 가진 지식의 1%도 투자하지 않고, 오로지 자신의 이익만 탐하는자와는 동지가 되지마라.
만나서 대화하면 모두 좋은 사람들이지만, 유독 인터넷에서만 자신을 밝히지 않고, 좀비로 서식하는 사람들이 많다.
부지불식간[不知不識間], 좀비(하류) 인생이 될지도 모르니, 항상 자신을 경계하도록 하라.
1. CentOS Linux
2. gcc로 공부하는 C++