Sabtu, 30 Mei 2009

Facts About Mp3 Player, Mp4 Player And iPod

The invention of the MP3 player, with MP4 player and iPod following it, has revolutionized the music industry. These lightweight, reasonably priced, portable music gadgets are almost everywhere you look. Earlier they used to be the obsession of the geeks, nerds and the electronic enthusiasts but today these players are a must have consumer electronic item for almost everyone whether it is the stay at house mom, working business executive, fitness freak joggers, teenagers or even the bored granddad.

MP3 player has personalized music like never before. The MP3 craze has reached its peak with people wanting more and more features in their players. What they want is to download their complete collection of music in their player. You can download and store more than thousands of songs inexpensively into your device and listen to it whenever you want; whether at office or at home or tolerating a boring lecture or even struggling past a heavy traffic jam. A music player seems to be in every hand nowadays. These are wireless, portable, wonders of music and entertainment that can store, systematize and play music on demand.

The three main types of digital audio players are MP3 CD Players that can play both data CDs and audio CDs with MP3 format files, Flash-based Players that are solid state devices with internal media or memory cards type external media and Digital Jukeboxes like the apple iPod and Creative Zen which can read digital audio files from a hard drive. These types of players are the most advanced in technology and have high memory ranging from 1.5 GigaByte to 100 GigaByte.

There is a myth regarding MP3 and MP4 player as Mp4 being a successor of Mp3 player, but these two are different things. Fundamentally, Mp3 is a specific category of audio format while Mp4 is actually a container format. But an Mp4 player can also play Mp3 files besides MP4 format files with complete clarity just like the original player.

The iPod was introduced by Apple Inc. and was launched in October 2001. The varieties of iPod available today include video fifth generation iPod, the small iPod nano and the display free iPod shuffle. You can use Apple`s iTunes software to transfer music of your choice to the devices. An iPod supports and plays MP3, AAC, AIFF, Protected AAC, WAV and some other audio file formats. The Apple iPod also has some additional features like displaying text files, viewing contacts and synchronizing it with the host computer, gaming facilities like the Brick, solitaire, Parachute and Music Quiz. A lot of accessories have been made for the iPod such as sound recorders, wired remote control, FM radio tuners, and cables for enabling TV connections.

iPods have often been criticized due to their short life-span, delicate hard drives.There are also some health risks associated with frequent use of these players which can lead to loss in audio capacity and can also lead to absent mindedness.

All of these music players are portable and use either a semi-permanent rechargeable battery or conventional batteries that can be disposed or recharged. Some MP3 / MP4 players also have additional features like playing FM stations, games, microphone for voice recording, address storage book and etc.

The MP3 player have created a huge mass hysteria amongst some age groups leading to many companies joining the bandwagon to design and market different types of MP3, MP4 players and iPods. It has also given rise to an entirely new industry of downloading sites. This heavy competition has forced companies to find new and innovative use of these players like incorporating features like camera, mobile and etc.

This article is under GNU FDL license and can be distributed without any previous authorization from the author. However the author's name and all the URLs (links) mentioned in the article and biography must be kept.

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Senin, 11 Mei 2009

Twitter - We Are Not For Sale

Twitter: “We are not for sale” - So back off, Apple Twitter is the latest Internet app to go from being minor to major, building at a rate not seen since Facebook enticed us all in. Which has, rather inevitably, led to talk of the company being bought out. Facebook failed, Google and Microsoft were rumored to be interested, and now Apple has emerged as the latest possible purchaser. Twitter’s response? “We are not for sale.”This week began with the news, or more accurately speculation, that Apple was interested in buying Twitter. Not just interested but in “serious negotiations” which are currently at a “late stage”. What’s more, Steve Jobs’s company was thought to be willing to pay $700 million in cold, hard cash for the company.

Both Gawker and TechCrunch claimed a deal was close, with Apple eager to tie it up by June so it could be announced at the company’s annual Worldwide Developers Conference. Both parties initially declined to comment on the stories but Twitter has now come out fighting.

Twitter co-founders Biz Stone and Evan Williams appeared on The View yesterday (May 6). According to Computer World, host Barbara Walters asked the question on everyone’s lips and inquired as to the truth or otherwise of the recent buyout talk. Stone simply said, “No. We are not for sale.”

Short, sweet, and very much to the point. Would Stone be likely to say this if Apple was even sniffing around? Maybe, but he made clear his and the company’s intention that despite the interest that certain companies may or not have in Twitter, the current owners aren’t planning to sell up anytime soon. Instead, they are working on new features for the site.

Personally, I’m really glad to hear Twitter plans to stay independent, especially if Apple is the company in the running to take over. I’m not a fan of Apple, its products, or methodology and would probably have to give up using Twitter if Apple was to turn Twitter into just another arm of its business empire.

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Jumat, 08 Mei 2009

Adware And Spyware Such A Pain

Spywares and adwares are not only annoying but more often than not tend to damage your computer software and sometimes can even cause some damage to your hardware too. These annoying bugs have become a bane for internet browsers worldwide. They have become a normal occurrence that we sometimes tend to ignore but God forbid we should never accept.

Spyware is computer software that spies on your internet usage. It collects highly personal and confidential information like credit card numbers, IPs and even addresses. The spyware program gets the credit card entries as the user logs them on a web form or an online application. Some spyware are even programmed to record your usage of the internet, what sites you visit, what files you download and how long you stay online.
The information are then sent or sold to advertisers which make good use of them for advertising campaigns that targets specific markets or audience. Usually, Spyware records IP addresses and shopping habits covertly or without the knowledge or consent of users. They do that in a number of ways. Some uses logging keystrokes to get information while some access the documents found in your computer's hard disk.

The term spyware first came to use in 1995 but the adoption of its present meaning came five years later. Spyware has been identified as the top security threats to computers using the Microsoft Windows operating systems. And Internet Explorer users were found to be the ones more susceptible to spyware attacks. Because of the popularity of IE and Windows, spyware programs were created to specifically attack and find its way from the internet into IE and into the important parts of the Windows operating system.

The threats are real and that's why the anti-spyware industry is flourishing. For every new spyware discovered, an anti-spyware program or update is created. These anti-spyware products usually disable or remove the existing spyware from the user's computer system. Once installed, they also provide protection preventing a variety of spyware programs from installing themselves in your computer.

However, there's a need to update these anti-spyware programs regularly. The World Wide Web is a fast pace medium. Everything in there changes quickly and even sporadically. The same goes with spyware. You never know when advertisers, web developers or even the government will come out with newer versions of spyware or adware that have improved ways of accessing your files and personal information. Some spyware program offer an uninstall option together with the program.

Most of the time, however, these uninstall options don't work. Some even installs more spyware instead of removing that particular one. So, it is best that you rely on services of anti-spyware programs to fully remove them from your operating system.

But while it is good that there are various anti-spyware programs at your disposal, it is better that you prevent the installation of these spyware in the first place. Some of the techniques that you could use are to disable the automatic installations of programs in your internet browsers and to install pop-up blockers.

Spyware and adware attaches themselves more frequently on those rather annoying advertising pop-ups. When accessing your email, it is a good practice to ignore mails that came from persons that you do not know or those that contain a vague subject. It is best that you delete these emails without opening them. It is quite cumbersome, but you really need to take time doing these things to make sure that your computers are free from spyware.

To Remove the Worse You Need the Best (best free spyware adware removal)

Imagine yourself walking along a busy street, minding your own business. You stop by a men's clothing store. You look at the window display, point at a new pair of shoes. After a few minutes of gawking at the window display you move on home.

As you go inside your house, you noticed a flyer on your porch. The flyer is on the exact pair of shoes that you saw in the men's store. How did they know? Was it coincidence? If this all happened in the internet, then it's probably not a coincidence. Your computer has been watched and your "movement" in the Web has been recorded. Your operating system has some spyware in it.

Spyware are computer programs that attach themselves in whatever things you download online. They are designed to track you wherever you go online. Spyware is a little different from adware. Adware are also referred to as freeware and are basically ads that pop-up when you open a website or webpage or open a program.

Spyware are similar in that they are also freeware, however, spyware programs have embedded tracking programs which reports your activity in the internet to the spyware agent which in turn provides the information to advertisers and web developers. With this information, advertisers and web developers and even the government can feed your computers with any information they want without your consent and even without you noticing it.

It is best, therefore that you employ some precautionary measures yourselves to stay free from spyware and adware attacks. First you need to disable auto installation of software programs in your internet browsers and you need use pop-up blockers and firewall protection.

This is your first line of defense against such spyware programs. The next thing to do is to get decent anti-spyware programs. It shouldn't be too hard, there are a lot of them nowadays and most of them are free or at the very least have free trial accounts.

Among the most popular free anti-spyware and adware programs are Ad Aware and Active Shield. Ad Aware offers advanced protection against Data-mining, Parasites, aggressive advertising, Scumware and some traditional viruses and tracking systems like Trojans, Dialers, Malware and Browser hijackers. Active Shield on the other hand targets trojans and spyware.

Other popular anti-spyware software include Spy-Ad Exterminator Free which searches the computer's memory, hard drives, and registry for spyware, adware, worms, hijacks, keyloggers, among others; Spy Cleaner Lite which identifies and removes programs that has been covertly installed in your systems; Spyware Doctor is an advanced adware and spyware removal program; Free Spyware Scanner tells the user how their computer got infected and the best solution for spyware removal; Doctor Alex Antispyware; Spyware Begone; 1-2-3 Spyware Free; and Easy Spyware Scanner.

Most of the time, these anti-spyware scanners and removal utilities will locate spyware and adware in your computer and will delete, ignore, or quarantine each and every one of them. Some anti-spyware programs will remove spyware automatically while other provides a user interface option where you can customize specific actions the anti-spyware would perform.

Some other popular spyware removal software includes Anti-Hijacker, Spyware & Adware Removal, Max Secure Spyware Detector, and Deluxe Spy-Kill utilities. These are just some of the more popular spyware removal software. It's up to you which one you choose, but try to look for reputable ones. Look at reviews and ask for referrals from friends.

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Kamis, 07 Mei 2009

A New E-Paper Competitor

A new display technology could make electronic paper look more like the real thing. Conventional ink on paper has a much higher brightness and black-and-white color contrast than electronic paper. The new display, made by researchers at the University of Cincinnati, in Ohio, is designed to match the brilliance and contrast of paper. "We've demonstrated a technology where you have the brightness of paper, and color has the same saturation that you expect from printed media," says electrical- and computer-engineering professor Jason Heikenfeld, who led the work, which was published in Nature Photonics.

The pixels also switch between black and white within one millisecond, making the technology suitable for video (LCDs currently switch in a few milliseconds). A slower refresh speed of tens to hundreds of milliseconds is one of the main issues plaguing current e-paper.So far, Heikenfeld and his colleagues have made rigid black-and-white displays that reflect 55 percent of ambient light--far more than any electronic-paper products currently on the market. White paper reflects 85 percent of ambient light, so it looks much brighter than Heikenfeld's system. But Heikenfeld says that the technology could be used to make full-color flexible plastic displays that have more than 60 percent brilliance, and higher-grade materials and manufacturing processes should eventually make his device almost as bright as white paper.

The researchers plan to develop products through the startup Gamma Dynamics. Flexible pocket e-reader maker Polymer Vision of Eindhoven, the Netherlands, and pigments supplier Sun Chemical of Cincinnati are already partnering to commercialize the technology. "This technology has the potential to beat all electronic-paper technologies out there on a combination of an extremely high reflectivity; a high, video-capable switching speed; and a thin stack," says Edzer Huitema, chief technology officer at Polymer Vision.

The new design offers the same advantage over LCDs as e-paper devices such as the Sony Reader and the Amazon Kindle. These devices, based on E Ink's technology, reflect light instead of emitting it, making them easier to view in bright sunlight and more power efficient than LCDs. But they have a brightness of 35 to 40 percent, leading to a lower contrast ratio than printed paper. "Low power is great, but you have to look good . . . if you really want to compete with LCDs," Heikenfeld says.

In their pixels, the researchers use aluminum layers that reflect light and carbon black ink for a deep black color. First, a polymer layer is patterned with wells that contain the black ink. An aluminum film is deposited on the polymer and topped with an indium tin oxide (ITO) transparent electrode layer. A voltage applied across the aluminum and the ITO electrode pulls the ink out of the well and spreads it over the entire pixel area.

The pixels are as small as 100 micrometers wide, giving the display a resolution of 300 dots per inch. This is higher than many e-readers on the market, Heikenfeld says. Putting red, green, and blue color filters on top of each pixel would create color displays.

Many other e-paper technologies are now emerging from corporate research labs and startups. Qualcomm's MEMS-based pixels are now seen in cell-phone displays. Microsoft Research has made telescopic pixels that reflect or block light using a pair of mirrors. Fujitsu is making an e-reader based on Kent, OH's Kent Display's low-power LCD-like technology. University of Toronto spinoff Opalux, meanwhile, is making prototype color displays with photonic crystal pixels.

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Selasa, 05 Mei 2009

YouTube Warns Users Over Product Placement

YouTube has written to several users warning them they are not allowed to include commercial messages in their supposedly amateur videos. The warning appears to be motivated by concerns that companies might be paying video makers for inclusion rather than paying YouTube itself for advertisings.

The company is complaining about product placement deals, in which a video maker accepts cash in return for including a mention or display of a particular product in their clip. According to YouTube, this makes the clips into a commercial video, which can only be uploaded with prior permission.
MediaWeek notes one example of a producer of a series of clips spoofing NASCAR TV coverage who included on-screen plugs for the Hardee’s restaurant chain, without asking YouTube first.

The site doesn’t appear to enforce the rule consistently: some producers say they’ve been allowed to use product placement as long as they also sell overlaid advertising through YouTube, while others say their product placement clips have been left online, but they’ve not had the type of promotion they’d have expected from the site.

YouTube’s argument that users shouldn’t be allowed to make cash from product placement while the site gets nothing but pays for the bandwidth seems pretty reasonable. The problem is that it’s extremely difficult to enforce practically.

Not only would you need human monitoring to spot product placement, but you’d then need an adjudication process to distinguish between genuine plugs and innocent cases where a poster simply happened to be using a branded product. Indeed, even when product placement was blatant, it would be virtually impossible to prove any cash had changed hands.

For the moment, then, it appears YouTube will have to stick to its current plan of putting pressure on the producers of the most popular content and getting across its message that people making money from product placement have a moral obligation to share the proceeds with the site.

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Sabtu, 02 Mei 2009

How To Clear A Stubborn Inkjet Printer Clog

Do you own an inkjet printer? Has the printhead ever clogged up on you, creating streaks or missing colors from your printing?

Clogs can be incredibly frustrating. Normally when you find out you have a clogged printhead, it's because you're right in the middle of printing something important. It's one of those problems that you never ask for. It just seems to throw itself in your lap without warning, and then taunts you in your efforts to fix it. The printhead is the mechanism of your printer (or inkjet cartridge), where the ink actually comes out.

For the most part, printhead clogs can be normally be flushed out with a couple of "head cleaning" cycles. A head cleaning cycle is a built-in function of your printer. It's a specialized routine meant to address this type of problem.

This "cleaning cycle" works by sending a strong 'print signal' to your printer, while at the same time drawing a small vacuum from underneath. The combination of these two steps works in an attempt to suck out clogged ink from the printhead. From my experience, you'll probably need to run between 3 and 5 cycles to fully clear a clog.

The location of the head cleaning cycle proceedure varies for each printer brand, so refer to your printer owner's manual for specific instructions to find yours. Check the index first.

If you don't have your owner's manual anymore, you can check our your printer manufacturers website. Most likely, they will have your printer manual online.

There are times however, when a few standard head cleaning routines don't seem to solve the problem. A stubborn printhead clog like this can be persistant enough to make you want to rip out your hair.

For times like these, you'll need to pull out the big guns!

For stubborn inkjet printhead clogs, there are various cleaners out there specifically for this purpose. These cleaners are formulated to disolve dried or "gummy" ink which may have accumulated from infrequent printer use, or even just a general build-up over time.

I personally brought an old printer "back from the dead" using a product called 'Clog Buster'. It was a printer I had purchased off of eBay which apparently hadn't been used in awhile. I spent a few hours trying to revive the printer, and 'Clog Buster' was the only thing that worked when nothing else did.

The only downside with using a cleaning product like this however, is that you usually don't have it in your immediate possession when the clog hits. Unless you have some already on hand, you'll have to wait for it to be shipped to you. In the meantime, your printing project will have to remain on pause until it arrives.

(But maybe I can help...)

The good news is that you MAY be able to solve the problem using some basic household products. In fact, Windex glass cleaner can actually work well for dissolving dried ink. What's the secret ingredient?

Ammonia.

Tough printhead clogs can usually be brought into submission by soaking the printhead in a solution of 50/50% ammonia and distilled water.

A important word of warning... Ammonia is potent and powerful stuff. When working with ammonia, always make sure you've got adequate ventilation, and avoid mixing it with other chemicals. Very important.

So, if your printhead is located on the inkjet cartridge itself, you'll want to soak the printhead in the 50/50 solution for an hour or two.

If the printhead unit is located inside your inkjet printer itself, then you'll first need to remove the inkjet cartridges. After those are removed, put some of the solution into the top of the printhead (directly into the nozzle holes) and let it sit a few hours. Go ahead and put a little more into the printhead resting seat. (This is the rubber rectangle part that seals off the printhead unit while the carriage is in it's resting position.)

If this initial soaking doesn't work, then repeat another time using 100% ammonia for up to one hour. Afterward, make sure to rinse completely with distilled water.

If the clog doesn't immediately clear, go ahead and let the printer sit overnight and try it again the next day. Sometimes the clog will breakdown slowly and release later as the ammonia takes it's toll.

Finally, for those of you wondering about the effectiveness of using alcohol to unclog cartridges and printhead -- here's a quick note...

Alcohol won't work as well as ammonia, but may work better than a few cleaning cycles. The downside is that alcohol may actually dry out the plastics and metals in the printhead. This could actually increase the chances of clogging later on down the road. So try to avoid alcohol if possible.

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Jumat, 01 Mei 2009

Faster Flexible Electronics

For years, engineers have been trying to make flexible electronics faster and less expensive to manufacture, but this has proved difficult. For instance, organic microwires, which can be used to make flexible electronics, are hard to align as circuits. Now researchers at Stanford University and Samsung have developed a technique that allows them to precisely position organic microwires on a substrate and build complex circuits with relative ease. The new technique involves putting microwires in a liquid solution and filtering them through paper to form the circuit's transistors.Zhenan Bao, a professor of chemical engineering at Stanford, who led the work, says that engineers can maximize the number of microwires in a circuit using the new technique. "That allows us to significantly increase the output current from these devices," she says.

Bao explains that the organic microwire transistors made using the new technique operate two and a half times faster than previous ones. This means that a flexible display made in this way could refresh about twice as quickly as those made using existing methods.

Most electronic devices, such as cell phones and computers, use microchips that are made from silicon. Transistors made from organic microwires may not be as fast as silicon ones, but they are better suited to making flexible electronics. They can be created cheaply, without using high temperatures that would melt plastic, and can also coat large areas, potentially creating huge flexible displays.

"Our goal is to make electronic devices that are lighter in weight and can be coated over a large area," says Bao. "This includes displays that are put onto a plastic substrate and can be folded, low-cost sensors that are disposable, and electronic tags put on merchandise."

Organic microwires can already be added to a solution and printed onto a substrate. But they tend to clump together and lie at odd angles, making it difficult to connect the electrodes needed to form a transistor. "Previously, many groups have shown that they can make transistors out of nanowires and microwires," says Bao. But they have not been able to align all these wires affectively. "All these wires are sitting on top of each other randomly," Bao says. "It's difficult to pack a dense layer of wires into the same area."

The new approach begins with depositing patterned metal onto a substrate made of silicon dioxide. The metal will form the electronic terminals of the microwire transistors. Next is the most important step: aligning the microwires across these terminals. The researchers do this by making a mask with a design that corresponds to the alignment of transistors on top of the terminals, and placing it onto a piece of filter paper. The microwires, which are contained in a liquid solution, are then poured onto the mask, and vacuum suction pulls them to the open areas of the mask. When the mask is removed, the wires are aligned on the filter paper correspondingly. Next, the filter paper with the patterned wires is put in contact with the electrodes on the substrate, and the wires are transferred when the whole thing is dipped into water.

John Rogers, a professor of materials science and engineering at the University of Illinois at Urbana-Champaign, says that the Stanford and Samsung approach could be used to quickly make large-scale microwire circuits that are as good as those constructed using more complex methods.

Bao and her colleagues are currently testing the idea that their alignment technique could work with other materials, including inorganic microwires, which have electrical and structural properties that are different from organic microwires. In addition, she says, her team plans to increase the complexity of patterns on a paper mask in order to create even more complex circuitry.

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