Jumat, 30 Oktober 2009

LA OSK 4

buat temen2 q yg mau LA OSK 4. yang tentang program Flip Flop n cara kerja dr gambar FF. tp mohon sedikit diedit lg bagi yang bukan perulangan.
silahkan klik disini

Kamis, 29 Oktober 2009

Bank Trojan botnet targets Facebook users


On the heels of one fake Facebook e-mail scam, a researcher warned on Wednesday of another such campaign in which users of the popular social network are being tricked into revealing their passwords and downloading a Trojan that steals financial data. 


In the latest scam being blasted to e-mail in-boxes, a legitimate-looking Facebook notice asks people to provide information to help the social network update its log-in system, said Fred Touchette, a senior security analyst at AppRiver. When the user clicks the "update" button in the e-mail, they are directed to a fake Facebook log-in screen where their user name is filled in and they are prompted to provide their password. (news.cnet.com)

 
When they provider that information, victims are taken to a page that offers an "Update Tool," but that is actually the Zeus bank Trojan that is designed to steal financial and personal data, Touchette said. 

Users of smart phones that have the Facebook app installed can also easily be duped because the phishing e-mail appears as an actual Facebook notification complete with Facebook icon, he said. The message is received in the e-mail in-box on the phone as well as under the Facebook notification section in the app itself, he added.

There are likely to be a lot of victims given how many e-mails the scammers are sending. AppRiver has captured about 6 million e-mails in its filters and noticed that the messages were coming in at a rate of 30,000 a minute at one point, according to Touchette. That's about 10 times the usual botnet e-mail message rate, he said.

More details are on the AppRiver blog. 

On Tuesday, researchers reported that a different botnet, Bredolab, was distributing fake "Facebook Password Reset Confirmation" e-mails that included a Trojan. As of late Wednesday night, security provider Cloudmark said it had seen more than 730,000 of the Bredolab-related e-mails.

To protect against such phishing attacks, people should be extremely cautious about clicking on links in e-mails and they can mouse over the link to see if the domain is a legitimate domain, Touchette said. 

Meanwhile, Facebook users should easily be tipped off that the latest scam is just that, a scam, he said. "Facebook doesn't need all of its users to update their accounts in order for them to make changes to their site," he added.

If there is any question about the legitimacy of the e-mail or the link, users should close the e-mail and go directly to the site to check for important notices to customers, he said.

Intel's next-gen memory closer to reality


Researchers are two steps closer to creating a mass-market version of technology called phase-change memory that could change how computers of the future are put together. 

Intel and Numonyx, the chipmaker's joint venture with STMicroelectonics that's focused on flash memory, announced Wednesday they've built a new type of phase-change memory chip they hope will help fulfill the technology's promise for small size and large capacity. 

Its 64-megabit capacity isn't momentous on its own--Numonyx announced a 128Mb device in 2006 and Samsung said in September it's producing a 512Mb chip. But what is significant are two major advances in making the decades-old idea practical. 

First, the researchers built a grid of wires into the chip so a computer can easily control the writing of a 1 or 0 in each of the 64 million memory cells. Second, they announced their manufacturing process lets them stack several layers atop each other so memory can be packed more densely in a given volume. 
 
Storing numbers in a computer hardly is new, so why could phase-change memory, which records ones and zeros by changing the molecular state of a particular type of glass, be a big deal? 

In short, it could combine the conventional computer memory's high speed with flash memory's low cost, low power demands, and high capacity. Having lots of fast memory on hand could simplify computer hardware and software that today must reckon with a hierarchy of storage technologies that trade off performance for capacity. 

Operating systems today must constantly work to keep important information in memory while relegating the rest to "virtual memory" stored on hard drives--or, these days, an intermediate layer in the hierarchy, solid state disks made of flash memory. Deciding what goes where is complicated, and priorities change from one moment to the next. 

"At Intel, we see this as an important milestone in enabling a future class of memory where you can combine attributes of memory semantics and storage semantics, potentially collapsing the technologies into one memory type," said Al Fazio, Intel's director of memory technology development, discussing the technology Wednesday. "The research is very promising in delivering that." 

For another thing, phase-change memory could get around difficulties of shrinking current memory technologies to ever-smaller sizes. And for another, it could lower the power consumption, reducing waste heat and extending battery life. 

A long history
But be sure to temper that promise with a long history. 

Phase-change memory is a decades-old idea. Intel co-founder Gordon Moore, of Moore's Law fame, wrote a paper on the idea in 1970. It's made some headway since then: phase-change technology is used to store data on rewritable DVDs and CDs. 

Intel and Numonyx aren't alone in trying to commercialize the technology. Start-up Ovonyx also is working on it, as are IBM, Samsung, and Philips Electronics. But as the years of labor show, it's been difficult bringing phase-change memory to market. 

Fazio and Greg Atwood, senior technology fellow at Numonyx, took pains to say their companies' work on the technology began in earnest at the beginning of the decade. 

"Significant new memory technologies are really quite rare," Atwood said. "There are many hurdles in introduction of new memory. Ten years is not an unreasonable time frame." 

Arguably, Atwood said, there only are three forms of memory developed since the 1960s, he said: dynamic random access memory (DRAM) that's the mainstay of computer memory, the more expensive static dynamic random access memory (SRAM) that's often integrated on processors, and electrically erasable programmable read-only memory (EEPROM), of which flash is one variety. 

Adding phase-change memory, sometimes called PCM, PRAM, or ovonics, therefore would be quite a departure in the history of computing. 

How's it work?
Phase change memory stores 1s and 0s in a tiny patch of glass material that can be changed from one state to another--specifically, so its molecules are arranged either in a crystalline pattern or an amorphous jumble. It's conceptually similar to water being either a liquid or an ice. 

In addition, Intel announced "multi-level" phase change memory in 2008 that adds two intermediate states, a move that means a single cell could hold two bits of data instead of one--the binary numbers of 00, 01, 10, or 11. That effectively doubled the 128Mbit capacity of the prototype chip to a 256Mbit chip, Intel said. 

The stacking technique could increase memory density further, though there are limits, Atwood said. 

"In principle, we can stack as high as we choose. In practice, every layer of memory has an additional cost," he said, requiring more processing and increasing the risks that defects will lower the yield of useful chips produced from a production batch. "There's no reason why we couldn't stack four layers for example, or potentially more." 

Though the researchers are excited about stacking, the 64Mbit prototypes uses only a single layer of memory cells. "The first layer is the hardest layer," Fazio said. And today's flash memory is only one layer thick. 

Like flash but unlike conventional computer memory, phase-change memory is nonvolatile, which means that once data is written, it stays put even if the power is switched off. That doesn't just preserve data when a device is off; it also means that unlike DRAM, power isn't required to keep the data in memory. 

Ever smaller
Intel was cagey about just how closely packed its latest memory cells are. But the company expects to achieve the same density of memory cells as flash memory--then go beyond it eventually. 

Flash memory today requires relatively high voltages--about 20 volts--to store its data, Fazio said. But high voltage and small distances are hard to put together, a fact that imposes limits on flash memory. 

Today's flash memory features measure about 30 nanometers, or billionths of a meter. Because of the voltage issue and the fact that the difference between a 1 and a 0 is just "a handful of electrons," it's getting harder to shrink flash memory technology. 

Phase-change memory, though, can get much smaller. "Research in the industry has shown that to be stable down to 5 nanometers and lower," Fazio said. 

The new wiring grid helps keep up with the shrinking trend by providing a way to get at the data even as cells get smaller. 

All this is important for the computer industry, which has struggled with the challenges of data storage. 

Once upon a time, memory and processors worked at closer speeds, but they've diverged over the years, which means processors often must idle while the memory system fetches data the CPU has requested. System architects have responded by building a hierarchy of storage systems--different levels of SRAM cache memory on the chip or right next to it, DRAM that's one level removed, and hard drives a step beyond that. 

Today's flash memory, which is faster than a hard drive and cheaper than conventional memory, is changing that arrangement. It's already revolutionized the portable device market with enough capacity for lots of songs, videos, and photos. Now it's begun arriving in high-end laptops with solid-state drives that offer longer battery life, higher performance, and greater ruggedness. And servers are on the cusp of major changes with the incorporation of flash memory. 

But flash memory is sluggish compared to conventional memory. If phase-change memory meets its high-performance promise in coming years, expect more profound changes for computing systems. 
(news.cnet.com)

Music search is Google's newest tune


LOS ANGELES--Already the far-and-away leader in search, Google wants to be a big player in music discovery, too.
 

The pop-up MySpace player that will appear when clicking the 'play' button in a Google search.
(Credit: MySpace) 

The search giant teamed up with News Corp.'s MySpace and streaming service Lala for the Wednesday debut of the new Google music search feature at the historic Capitol Records building in Hollywood. With the new music search, which had been internally code-named "OneBox" when news of the project broke earlier this month, search queries pertaining to something like a song, artist, lyrics, or album will bring up links to streaming songs from iLike and MySpace, as well as links to artist information on Pandora, Imeem, and Rhapsody. The lyrics search is provided through a partnership with Gracenote. 

"It is directly embedded and integrated into Google search. There's no special button to push," R.J. Pittman, director of product management for search properties, said in a phone interview with CNET News. Currently, due to licensing and availability issues, the music search is U.S.-only.

There also won't be direct download links in Google: those will be handled through Lala and MySpace. "We push all the music engagement and commerce down through the partners," Pittman said.

Additionally, if a relevant music video is available, the MySpace window that pops up when someone clicks on the "play" button in search results will display a link to that video through MySpace's new music video portal. That's interesting, considering music videos are some of the most popular content on Google's own YouTube--but YouTube video results will continue to show up independently of the new music results in Google searches.

Financial terms of the partnerships aren't yet clear. "Everyone's keeping their own revenues and we're not messing with anything," Lala founder and Chairman Bill Nguyen told CNET News. But MySpace Music President Courtney Holt was a bit more tight-lipped, saying "we're not discussing the financial details."

The MySpace deal is a little more complicated to begin with, though. Google had been in talks with music start-up iLike about integration into music search, but then iLike was acquired by MySpace in a deal that closed earlier this month. Indeed, a statement from Holt says that "this relationship was secured and implemented by the iLike team." But iLike founder Ali Partovi (who's currently on board MySpace's music team) explained that the partnership now has "MySpace branding, (and) MySpace content licensing." Through the integration of iLike's technology, it'll also have concert notifications if someone searches on Google for a band that's currently on tour. 

"I think MySpace, along with (Apple's) iPod, is one of the most trusted brands in music, one of the most resonant to consumers," Partovi said. MySpace is also reported to be in talks with Microsoft to power a music feature on MSN.

Music search is something that Google could really dominate. According to traffic firm Experian Hitwise, 6 percent of Google's top 1,000 search-related terms deal with music, and already 30 percent of traffic to sites that Hitwise classifies under the "music" umbrella comes from Google.

Considering Google's reach, it's a big win for both MySpace, currently struggling to redefine itself as a pop culture powerhouse rather than a social network through its MySpace Music service, a joint venture with major and independent record labels, and Lala, which also has a new song-gifting deal with Facebook. "We think (Google's music search) going to have a thousand percent increase in our sales, an order of magnitude more," Lala's Nguyen told CNET News.

This also means that music-related search results are getting a sheen of legitimacy on Google. With official partnerships, Google's most prominent music search results will be from sites that have licensing deals in place with the major labels, rather than potentially pirated content. Google's history with the music industry is spotty at best: it's had to strike its own deals with the major record labels, and relations haven't always been positive. Music search puts it all into order, partners in the deal say.

"Instead of ending up with a pirate site and a page with a bunch of ads or random lyrics sites, you wind up with a play button," Nguyen said.

Updated 4:30 p.m. Just after Google and Lala made the announcement official (in what was probably not a conincidence) Yahoo released a blog post designed to point out that they've been offering this kind of music search for a while. "We've made it easier to find music videos, artist information, and play full length songs from within the search results page. This is just one of the many ways Yahoo! is enhancing the search experience for music lovers," said Larry Cornett, vice president of consumer products for Yahoo Search. 
(news.cnet.com)

Selasa, 27 Oktober 2009

Linux kernel


The Linux kernel is an operating system kernel used by the Linux family of Unix-like operating systems. It is one of the most prominent examples of free and open source software.

The Linux kernel is released under the GNU General Public License version 2 (GPLv2) plus proprietary licenses for some controversial BLOBs and is developed by contributors worldwide. Day-to-day development takes place on the Linux kernel mailing list.

The Linux kernel was initially conceived and created by Finnish computer science student Linus Torvalds in 1991. Early on, the MINIX community contributed code and ideas to the Linux kernel. At the time, the GNU Project had created many of the components required for a free software operating system, but its own kernel, GNU Hurd, was incomplete and unavailable. The BSD operating system had not yet freed itself from legal encumbrances. This meant that despite the limited functionality of the early versions, Linux rapidly accumulated developers and users who adopted code from those projects for use with the new operating system. The Linux kernel has received contributions from thousands of programmers. Many Linux distributions have been released based upon the Linux kernel. (en.wikipedia.org)



LINUX


Linux (commonly pronounced /ˈlɪnʌks/, LI-nuks in English[4][5], also pronounced /ˈlɪnʊks/) is a generic term referring to Unix-like computer operating systems based on the Linux kernel. Their development is one of the most prominent examples of free and open source software collaboration; typically all the underlying source code can be used, freely modified, and redistributed, both commercially and non-commercially, by anyone under the terms of the GNU GPL.
Linux is predominantly known for its use in servers, although can be installed on a wide variety of computer hardware, ranging from embedded devices, mobile phones and even some watches to supercomputers. Linux distributions, installed on both desktop and laptop computers, have become increasingly commonplace in recent years, partly owing to the popular Ubuntu distribution and the emergence of netbooks.
The name "Linux" comes from the Linux kernel, originally written in 1991 by Linus Torvalds. The rest of the system usually comprises components such as the Apache HTTP Server, the X Window System, the GNOME and KDE desktop environments, and utilities and libraries from the GNU Project (announced in 1983 by Richard Stallman). Commonly-used applications with desktop Linux systems include the Mozilla Firefox web-browser and the OpenOffice.org office application suite. The GNU contribution is the basis for the Free Software Foundation's preferred name GNU/Linux.
Unix
The Unix operating system was conceived and implemented in 1969 at AT&T's Bell Laboratories in the United States by Ken Thompson, Dennis Ritchie, Douglas McIlroy, and Joe Ossanna and first released in 1971. Unix was written in assembly language and later re-written in C in 1973 by Dennis Ritchie. Its wide availability and portability due to being written in C meant that it was widely adopted, copied and modified by academic institutions and businesses, with its design being influential on authors of other systems.
GNU
The GNU Project, started in 1983 by Richard Stallman, had the goal of creating a "complete Unix-compatible software system" composed entirely of free software. Work began in 1984. Later, in 1985, Stallman created the Free Software Foundation and wrote the GNU General Public License (GNU GPL) in 1989. By the early 1990s, many of the programs required in an operating system (such as libraries, compilers, text editors, a Unix shell, and a windowing system) were completed, although low-level elements such as device drivers, daemons, and the kernel were stalled and incomplete. Linus Torvalds has said that if the GNU kernel had been available at the time (1991), he would not have decided to write his own. (en.wikipedia.org)



Windows 7


Windows 7 is the latest version of Microsoft Windows, a series of operating systems produced by Microsoft for use on personal computers, including home and business desktops, laptops, netbooks, tablet PCs and media center PCs. Windows 7 was released to manufacturing on July 22, 2009, and general retail availability on October 22, 2009, less than three years after the release of its predecessor, Windows Vista. Windows 7's server counterpart, Windows Server 2008 R2, was released at the same time.
Unlike its predecessor, which introduced a large number of new features, Windows 7 is intended to be a more focused, incremental upgrade to the Windows line, with the goal of being fully compatible with applications and hardware with which Windows Vista is already compatible. Presentations given by Microsoft in 2008 focused on multi-touch support, a redesigned Windows Shell with a new taskbar, referred to as the Superbar, a home networking system called HomeGroup, and performance improvements. Some applications that have been included with prior releases of Microsoft Windows, including Windows Calendar, Windows Mail, Windows Movie Maker, and Windows Photo Gallery, are not included in Windows 7; some are instead offered separately as part of the free Windows Live Essentials suite.
Main article: Features new to Windows 7
Windows 7 includes a number of new features, such as advances in touch and handwriting recognition, support for virtual hard disks, improved performance on multi-core processors, improved boot performance, DirectAccess, and kernel improvements. Windows 7 adds support for systems using multiple heterogeneous graphics cards from different vendors (Heterogeneous Multi-adapter), a new version of Windows Media Center, a Gadget for Windows Media Center, improved media features, the XPS Essentials Pack and Windows PowerShell being included, and a redesigned Calculator with multiline capabilities including Programmer and Statistics modes along with unit conversion. Many new items have been added to the Control Panel, including ClearType Text Tuner, Display Color Calibration Wizard, Gadgets, Recovery, Troubleshooting, Workspaces Center, Location and Other Sensors, Credential Manager, Biometric Devices, System Icons, and Display. Windows Security Center has been renamed to Windows Action Center (Windows Health Center and Windows Solution Center in earlier builds), which encompasses both security and maintenance of the computer. The default setting for User Account Control in Windows 7 has been criticized for allowing untrusted software to be launched with elevated privileges by exploiting a trusted application. Microsoft's Windows kernel engineer Mark Russinovich acknowledged the problem, but noted that there are other vulnerabilities that do not rely on the new setting. Windows 7 also supports Mac-like RAW image viewing through the addition of WIC-enabled image decoders, which enables raw image thumbnails, previewing and metadata display in Windows Explorer, plus full-size viewing and slideshows in Windows Photo Viewer and Window Media Center. 
(en.wikipedia.org)


Sabtu, 24 Oktober 2009

Office 2010 Memasuki Versi Beta


Bersamaan dengan diumumkannya Visual Studio 2010 kemarin (19/10/09), Microsoft juga mengumumkan bahwa akan segera merilis versi beta dari Office 2010 bulan November 2009 mendatang.

Pengembang aplikasi telah merilis preview dari teknologi-teknologi yang cukup dibatasi pada bulan Juli lalu dan merencanakan akan merilis versi finalnya pada tahun depan. Selain itu juga, pengembang telah memulai untuk uji coba versi web based “Office Web Apps” pada bulan September 2009 lalu.

Pada konferensi SharePoint tersebut juga mengutarakan beberapa fitur baru dari generasi baru aplikasi portal tersebut yang mana bulan depan akan memasuki versi beta-nya.

Versi terbaru ini meliputi Office Ribbon User Interface yang mana sudah mendukung penggunaan video, audio dan Silverlight. Para programmer juga akan mengembangkan website Sharepoint menggunakan generasi terbaru dari Visual Studio, yang mana akan memasuki versi beta pada minggu ini juga.

Sharepoint adalah produk utama dari Microsoft sebagai salah satu perusahaan yang cepat berkembang pesat dengan bisnis yang telah menghasilkan 1.3 milyar dolar dan telah naik hingga 20 persen keuntungannya untuk 1 tahun belakangan ini.

“SharePoint 2010 adalah yang terbesar dan paling utama untuk dirilis,” kata CEO Microsoft, Steve Ballmer. “Ketika dipasangkan dengan Microsoft Office 2010, SharePoint 2010 akan bertransformasi dengan lebih efisien dengan cara mengkoneksikan para pekerja dengan satu platform khusus untuk kolaborasi bagi bisnis besar nantinya.” (beritateknologi.com)

Jumat, 23 Oktober 2009

Ubuntu 9.10 Release Candidate


Peluncuran software open source Ubuntu 9.10 Release Candidate (RC) oleh Canonical, ternyata bersamaan dengan launching system operasi terbaru dari Microsoft, Windows 7. Pada Kamis (22/10) lalu, Canonical merilis system operasi yang pernah dijuluki Karmic Koala tersebut, dan satu pengembangan lebih lanjut untuk ke versi final mulai tanggal 29 Oktober mendatang.
Uji coba Karmic Koala RC tersebut dapat di-download untuk server, desktop dan versi netbook, melalui website Ubuntu (releases.ubuntu.com/releases/9.10). Untuk Ubuntu 9.10 RC versi desktop juga dapat di-instal di standard laptop. Software Ubuntu 9.10 RC ini merupakan upgrade dari versi sebelumnya Ubuntu 9.04, yang membawa kode Jaunty Jackalope.

Dibangun di kernel Linux terbaru Linux 2.6.31.1 kernel, Ubuntu 9.10 RC menawarkan booting time lebih cepat, improvisasi interface dan tool programming dengan variasi lingkungan grafis desktop.Grafis desktop termasuk integrasi software IM (Instant-Messaging), browser web, document viewer, dan software multimedia.

Software Karmic Koala ini dilengkapi dengan tool baru bernama "Ubuntu Software Center" yang memudahkan user untuk menghapus atau menambah program, sama halnya seperti di Windows. System operasi ini juga telah memperbaiki banyak bug dari edisi Ubuntu sebelumnya dan support driver untuk tambahan hardware. Canonical menyiapkan penyimpanan online dan layanan file-sharing bernama Ubuntu One, yang ada di Ubuntu 9.10 RC. User dapat backup, share atau sinkronisasi data melalui website Ubuntu One (one.ubuntu.com). Layanan tersebut memiliki kapasitas penyimpanan online 2GB gratis untuk pengguna Ubuntu, dan tambahan kapasitas 50GB dengan harga $10 per bulan. (beritanet.com)
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