Sunday, March 23, 2008
Build Your Own High-Def PC
If you've been dreaming of the ultimate high-definition computer, why not take matters into your own hands? We show you how to pick the hottest components and create the multimedia system of your dreams.
It's official: We're living in a high-definition world. And with a new generation of affordable, high-quality HD components flooding into the world of PCs, it's high time your computer shared in the fun.
Unfortunately, great HD systems still cost a fortune. However, if you've got the skills to assemble your own machine, you can save a bundle by building an HD-capable Media Center PC that can bring you pristine video and amazing gaming.
Whether you're recording free, over-the-air HDTV, playing Blu-ray Disc movies, or making light edits to your HD home videos, a well-built high-def system does it all. For this demonstration, I'm building a PC that will complement my living room entertainment system. Feel free to mix and match choices for your own needs. Heavy gamers, especially, should aim higher on the video card and processor.
Note: For the purposes of this guide, I assume the reader has a basic level of PC building experience. If you've never built a computer before, I recommend reading Scott Mueller's article " Step-By-Step: To Get Just the PC You Want, Build It Yourself " -- it offers important tips for assembling your computer. No matter how experienced you are, be sure to practice good antistatic procedures by grounding yourself well at all times and wearing an antistatic wrist band .
Case and Power Supply
Any good computer starts with high-quality components from the ground up. That means choosing a case and power supply that will be adequate for your needs.
SilverStone Crown CW03-MT--click for full-size image.
Case
Beauty is beauty--even if it's skin deep. Pick a case that will look good on your desk or in your home entertainment center. Many home theater cases also include displays to show the name of a song that's playing and even navigate media: in a word, slick. I chose the SilverStone Crown CW03-MT for my HD PC, largely because of this integrated LCD display. (Look for this case at various online electronics stores.)
Be sure the software that drives those extras works with your operating system of choice. I'm planning to load my HD system up with Windows Vista Home Premium, which I know will support this feature (as will Windows XP Media Center Edition).
While you could cram everything into a case the size of pizza box or shoe box, you'll have a much easier time and a broader selection of components to chose from if you stick with a horizontal minitower. Also, the system's heat--and therefore the sound generated by fans keeping everything cool--is going to define your experience. Nobody wants to have to pump up the volume just to drown out a whiny PC fan. Good airflow design will keep things quiet.
Builder's Tip: Before you start building, cover part of a table with overturned mouse pads to create an antistatic workspace, and wear a wrist strap clipped to the case to protect the components.
Antec NeoPower 650--click for full-size image.
Power Supply
A 500-watt power supply should generally prove adequate if you're not including multiple hard drives, a high-end video card, and other energy-hungry devices beyond the recommendations given here. (Use OuterVision Extreme's Power Supply Calculator Lite to come up with a rough estimate of what you'll need.) Some cases--especially those smaller than the industry-standard ATX--include built-in power supplies. But for nearly silent performance, consider upgrading from those. Finally, go green if possible, with the latest energy-efficient spec, 80 Plus. I chose the Antec NeoPower 650 because of its quiet fan, and its 650-watt rating ensures more than enough margin to grow with upgrades.
When installing your power supply, try to route the nest of cables along the case edges so that they don't obstruct airflow.
Motherboard, Processor, RAM, and Video Card
ASUS M3A32-MVP motherboard--click for full-size image.
Lay a foundation for premium performance by selecting a great motherboard and CPU; then complement those components with fast memory and a high-def graphics card.
Motherboard
First, be sure to pick a motherboard that works with the previous parts: ATX versus MicroATX for the case and the right socket for your processor. The video card should work with any new motherboard's PCI Express slot, but get one with a like-brand on-board video chip set for best compatibility. (Or avoid on-board video entirely.) Skip a dedicated sound card by picking a motherboard with a surround-sound chip set and output plugs to match your receiver. The standard assortment of PC ports should be fine, but get gigabit ethernet for high-speed, wired video transfers over a home network. I picked the ASUS M3A32-MVP for compatibility with all of the previous components and for its silent heat-pipe design that provides extra cooling.
For PC World reviews of top motherboards, see our Top 10 chart.
AMD Athlon X2 BE 2400 CPU--click for full-size image.
Processor
Quad-core processors are going mainstream, but they draw a lot of power and generate excessive heat. Certain video editing programs take great advantage of the four cores, but we're aiming for a lower target. You could still build a good system with an Intel Core 2 Quad Q6600 or other similar chip--gamers take note--but I decided to go with something less powerful and a lot cooler. The AMD Athlon X2 BE 2400 works well for home theaters because its peak draw of 45 watts helps keep the fans quiet. This CPU's 2.3-GHz speed and dual-core architecture provide enough muscle for general media tasks, but a dedicated HD video decoder on the graphics card will add more power. Whether you go with an Intel CPU or one from AMD, you'll definitely want a dual-core processor to handle the system's multimedia tasks.
You can install the processor simply by lifting the socket arm, carefully setting the chip in place, and lowering the lever--no pressure is needed.
Zalman CPU cooler.
CPU Cooler
Your CPU should come with its own heat sink and fan, but those bundled components may well generate too much noise for an entertainment PC. Give them a try if you can, but don't hesitate to consider a replacement. While you can buy liquid cooling components that are completely silent, we're skipping that route because of the maintenance required, not to mention leaks. Instead, opt for a quiet, variable-speed fan attached to a heat sink. And double-check the specific model for processor and case compatibility. The Zalman CNPS9500 CPU cooler fits with my components and case, and it runs quietly when turned down.
When installing your own CPU cooler, be sure to apply an even, paper-thin layer of thermal paste over the processor's surface, and set the cooler in place. Try not to let the cooler slide back and forth over the CPU while seating it.
RAM
Current motherboards can support a variety of memory chips, but make sure that the exact type you select works with yours. Don't bother with the absolute fastest DDR3 RAM. Instead, spend your money on quantity: 4GB will be ample for Windows Vista or Windows XP Media Center. (And unfortunately, your particular OS and hardware configuration might not quite recognize all of it.) Also, go for a pair of the same 2GB DIMMs. Many current motherboards take advantage of dual-channel architecture so that each DIMM can access the memory controller. The middle-weight Crucial 2x2GB DDR2 PC2-5300 DIMMs strike a solid balance between price and performance.
Handle the RAM--and any other components, for that matter--only by its edges, and firmly push it straight into place rather than at an angle.
ATI Radeon HD 3450 graphics card--click for full-size image.
Video Card
The graphics card is one of the most critical components in our setup, since it's going to take over much of the HD playback from the processor. And in just the past several months, these cards have made a giant leap forward in quality while prices have dropped.
You don't necessarily need an ultra-high-end option: Those generate excessive heat. Instead, just make sure the card decodes Blu-ray Disc movies in addition to your own recorded shows. HDCP compliance--which decrypts the digitally protected video signal--is critical, but fortunately, it's also typical these days. The Asus EN8600 GT with HDMI is one good option, fulfilling these needs easily. At press time, nVidia was also readying its GeForce 8200 chip set for motherboards, bypassing the need for a dedicated HD graphics card. For my system, however, I picked the ATI Radeon HD 3450 video card, because it meets my other needs and doesn't require a fan for cooling. Unlike the Asus, this card lacks an HDMI port, but it works well with any DVI-equipped HDTV.
Drives, Displays, Input, and Operating System
1TB Seagate Barracuda 7200.11 hard drive--click for full-size image.
You'll need tons of hard-drive space to store all your media, plus an HD optical drive to play high-def movies. Here are the components for completing your HD PC.
Hard Drive
Compressed HD video recordings can eat up roughly 7GB per hour, so get a big enough hard drive to hold all those recordings. Nearly all current motherboards support the SATA bus, and the most recent models run at 3GB per second, although 1GB/sec models should be fast enough for this system. Pick a drive that runs at 7200 RPM or greater. While you could install multiple drives for the absolute best performance, a big, single drive will be sufficient. Go for at least 500GB. I settled on a 1TB Seagate Barracuda 7200.11 because of its speed and its capacity to hold 140 high-def episodes of Lost. If you add multiple drives, position them as far from each other as possible, so they stay cooler.
Optical Drive
A few weeks ago, as of this writing, Blu-ray had pummeled its rival, HD DVD, into little more than a sad memory. Unless you're looking for bargain movies as they're discontinued, you should avoid the dead-end HD DVD format. I chose the Pioneer BDC-2202 for my system, because it plays back Blu-ray discs and burns standard DVDs. (You can find Blu-ray burners for about three times that cost.) Whichever drive you settle on, consider removing the front bezel when installing it in your case. This plastic lip isn't always needed, and some system cases even come with a replacement bezel that matches the color of the front paneling.
ATI TV Wonder 650
Video Tuner and Capture Card
I'd like to drink straight from my cable company's HDTV programming through a CableCARD solution, but those still aren't readily available to do-it-yourselfers like me. Instead, I'll have to get my over-the-air HDTV through an ATSC tuner card and antenna. Since the ATI TV Wonder 650 supports the Clear-QAM format for digital cable, I can use it to capture unencrypted digital channels directly from a cable feed. Analog component-video capture cards are available, but they're overkill for this project, running a thousand dollars and designed for high-end video production.
To capture HD footage from your own video camera, just stay digital with USB or FireWire. Antenna type and position will determine your channels. Look for one that advertises digital reception, and try aiming in different directions while testing stations.
Sound Card
Dedicated audio cards aren't nearly as essential as they used to be. Sound processing is rarely taxing enough to slow down a modern system, so I didn't use any add-on card for my project. Besides, Windows Vista's rewritten audio architecture takes even less advantage of sound cards than Windows XP. Unless you're building a recording studio or need specialized audio ports that aren't built into the motherboard you bought, skip the sound card altogether and save a chunk of change.
Logitech diNovo Mini Keyboard--click for full-size image.
Input devices
If you're planning to use your PC with your home entertainment system, a Media Center remote is a must. You'll want something that controls mouse movement and can input key commands. I like to have a full-on wireless keyboard and gyroscopic mouse nearby for extensive input. But you can also get home-theater-designed devices that fill all these roles. For that universal approach, I picked the Logitech diNovo Mini Keyboard. This Bluetooth remote handles mousing with its trackpad, while the thumb-friendly keypad works well for entering URLs. But if you choose a different solution, be sure it uses RF--radio frequency--commands instead of IR (infrared). RF can work from as far as a few rooms away, while IR requires a short, direct path to the PC.
Samsung SyncMaster 275T monitor--click for full-size image.
Display
Resolution and aspect ratio are critical when picking a monitor. For a living room, be sure to get something that's natively shaped in a 16:9 rectangle to match HD video. (A work-and-play office display might have a taller shape.) And pick a size that's at least 1920 by 1080 pixels (1080p). Both LCD and plasma screens look great, although some plasma displays present brighter colors in exchange for a higher cost. I'm going to be plugging my system directly into my existing HDTV, but the 27-inch Samsung SyncMaster 275T makes a good desktop alternative because it includes a variety of inputs for analog and digital connections. Be sure that your display--like this one--supports HDCP for Blu-ray Disc and movies.
Software
I based my system on Windows Vista Home Premium because Media Center comes bundled with that package (as well as with the Ultimate edition). If you can track down Windows XP Media Center Edition, that older OS is a good alternative, but it doesn't include the same native HD support, built-in MPEG-2 decoder, and overhauled interface as Vista's version.
Unfortunately, neither OS allows Blu-ray Disc playback in Media Center or Windows Media Player. Your Blu-ray drive will likely ship with bundled software, but if not, check out Nero 8 Ultra Edition.
Once your system is up and running, add it to your home entertainment center or set it up on your desktop to watch and edit movies, record your favorite shows, play all your music, and more.
Wednesday, February 20, 2008
End of the High-Def Format War: Five Pros and Cons
There's no question that the next-generation DVD, high-definition format war has been a detriment to consumers. Ever since Blu-ray Disc and HD DVD movies and hardware came to market in 2006, the cloud of uncertainty has hung heavy over both formats, constraining growth as wary consumers watched from the sidelines.
With Toshiba's withdrawal today from producing HD DVD players and PC drives, the format war has come to abrupt end--and consumers everywhere can breathe easier as they whip out a credit card to buy a Blu-ray player.
But it's not all good news for consumers. Now that the war is over, I can see both pros and cons. Here are some to consider.
Pro: One Format Rules Them All
With HD DVD's withdrawal, all movie studios will release their content on Blu-ray. That means when you buy a Blu-ray Disc player, you will be able to buy it with the confidence that all of the movies you'll want to see or buy--regardless of what studio produced and distributed the film--will be available on that format.
Pro: Your Movie Collectionf Will Play in Your Player
Buy high-def movies today, and know that those discs won't become tomorrow's Frisbees. That said, you still have a bit of buyer beware here: Older Blu-ray Disc players still remain on the market that don't support Blu-ray's Bonus View (also known by its former code-name, Profile 1.1). Such players won't be able to play back the picture-in-picture and other extra features that Bonus View provides, but they will play the movies.
Con: Price Drops Will Slow
When trying to win the war, Toshiba pushed prices on HD DVD equipment down artificially fast. Without the intense price competition from Toshiba's HD DVD players, we're not going to see the speedy drop in prices on Blu-ray players that we've seen in the previous two years.
In 2006, according to the Consumer Electronics Association, the average player price was $500. This is a number that I personally find incredibly low given that Blu-ray players were introduced in the summer and fall of 2006 at $1000. (HD DVD players cost less, and so clearly dominated the early sales if the average unit sales price still came out at $500). Fast forward to 2007: The average selling price dropped to $395. In 2008, the CEA expects the average player price to drop to $307.
Con: There Are Fewer Deals to Be Had
Think high-def TVs bundled with Blu-ray players. Think aggressive buy-one, get-one-free disc deals. I don't imagine Blu-ray's backers will completely drop such initiatives--after all, they have a vested interest in converting users to the new formats.
But I fully expect we'll see fewer such promotions, and that they'll be used more judiciously than they have been in what has turned out to be the last few months of the format war.
Pro and Con: Expect to Find HD DVD Movies and Hardware on the Cheap
Toshiba says it is working closely and communicating directly with its retailers on next steps. The company will begin to reduce shipments of HD DVD players to retails channels, aiming for cessation by the end of March 2008. Presumably players will be sold on the cheap.
Best Buy spokesperson Brian Lucas says his company doesn't have any immediate plans to pull HD DVD product off the shelves at this point. "Customers who still want to purchase HD-DVD movies will be able to come to our stores to do so. But we anticipate demand will drop considerably, and as demand dries up for HD-DVD products you will start to see us pull them from our shelves," Lucas says.
If you see an HD DVD player--specifically the A35 or the A30--for about $100, you'd be getting a good upconverting DVD player for the price (upconversion enhances your DVD movie viewing pleasure). But that's still a higher price than some upconverting 1080p DVD players, so buyer beware.
Toshiba After HD DVD: What Lies Ahead?
By now Toshiba's decision to no longer develop, manufacture, or market HD DVD players and recorders is public knowledge. What's next for the company, and for consumers who bought into the format it supported? A close look at Toshiba's press release reveals some answers.
Long-Term Impact
"We carefully assessed the long-term impact of continuing the so-called next-generation format war and concluded that a swift decision will best help the market develop," says Atsutoshi Nishida, Toshiba president and CEO.
There's irony here, for sure: After all, Toshiba forged ahead with its technology two years ago, at a time when a format war could have been averted before products went to market and consumers were dragged into the mess. Perhaps this is the company's way of apologizing for the whole debacle.
High-Def Lives
Nishida continues, "while we are disappointed for the company and more importantly, for the consumer, the real mass market opportunity for high definition content remains untapped."
That Toshiba still sees the market opportunity for high-definition content is no surprise. This is a company that makes HDTVs. What will you play on those enormous HDTV screens if not high-definition content?
But will Toshiba enter the Blu-ray Disc player market? It's doubtful. In part thanks to the format war, prices have deteriorated so quickly that the margins just aren't there. Plus, the market is fast moving toward commoditization. Give it another two years, and we'll see Blu-ray Disc players being sold for under $200.
Beyond the Disc
At the same time Toshiba announced its withdrawal from HD DVD, the company said it would increase its focus on high-capacity NAND flash memory and small hard drives. Toshiba also said it would work on maximizing next-generation CPUs, visual processing, and wireless and encryption technologies.
Shortly after making its HD DVD announcement, Toshiba revealed that it has partnered with SanDisk to build a new flash memory chip factory; the companies will share the output from the factory. Toshiba is also launching another chip factory of its own for NAND flash memory.
If Toshiba could get costs down and capacities up on its portable hard drives, the company could pursue another market: high-definition recording to hard disk for DVR-like networked media players. Converged devices such as these could be attractive to network-savvy users who want everything networked throughout the home, including their high-definition content.
That said, Apple's foray into the field--Apple TV--didn't exactly get consumers humming. For Toshiba to make a go of it, the company would have to make its product easier to use and better than the solution that cable and satellite operators currently provide: high-def DVR boxes that require few cables. Toshiba could offer a premium high-definition DVR that also supports streaming media around the home network; years ago Toshiba had prototype designs for such a concept (sans the high-def). Toshiba has already dipped into media streaming with its Network NAVI interface introduced on the RD-XS54 DVD recorder a few years ago.
HDi: Does It Still Have a Future?
Toshiba says it intends to "maintain collaborative relations with the companies who joined with Toshiba in working to build up the HD DVD market, including Universal Studios, Paramount Pictures, and DreamWorks Animation and major Japanese and European content providers on the entertainment side, as well as leaders in the IT industry, including Microsoft, Intel, and HP. Toshiba will study possible collaboration with these companies for future business opportunities, utilizing the many assets generated through the development of HD DVD."
Translation: The company plans to maintain good relations with its current partners.
However, this may be an oblique reference to the HDi interactivity initiative Toshiba and Microsoft began in 2007, which involved expanding the advanced interactive layer used in HD DVD media authoring. As recently as late January Microsoft was pushing its HDi technology at the 2008 Sundance Film Festival. And Toshiba and Microsoft have revealed that the larger vision for HDi included a universe where multiple devices--including portable media players, servers, and content stored on the Internet--would use HDi to talk with one another.
It's quite possible that Toshiba plans to continue exploring HDi--assuming Microsoft plans to continue pursuing the technology in light of HD DVD's demise.
Friday, February 1, 2008
Internet failure hits two continents
DUBAI, United Arab Emirates (CNN) -- High-technology services across large tracts of Asia, the Middle East and North Africa were crippled Thursday following a widespread Internet failure which brought many businesses to a standstill and left others struggling to cope.
Hi-tech Dubai has been hit hard by an Internet outage apparently caused by a cut undersea cable.
Industry experts are blaming damage to two undersea cables but it is not known what caused the damage.
Reports say that Egypt, Saudi Arabia, Qatar, the United Arab Emirates, Kuwait, Bahrain Pakistan and India, are all experiencing severe problems.
Nations that have been spared the chaos include Israel -- whose traffic uses a different route -- and Lebanon and Iraq. Many Middle East governments have backup satellite systems in case of cable failure.
Stephan Beckert, an analyst with TeleGeography, a research company that consults on global Internet issues, said the damaged cables collectively account for the majority of international communications between Europe and the Middle East.
Du, a state-owned Dubai telecom provider, attributed the outage to an undersea cable cut between Alexandria, Egypt and Palermo, Italy, according to an internal memo obtained by CNN.
In India, Spectranet and Telecomasia.net, two large Internet service providers were experiencing problems. Reliance, a third major Indian Internet provider, said it was not affected.
An official at Egypt's Ministry of Communications and Information Technology, speaking on condition of anonymity told AP it was believed that a boat's anchor may have caused the problems, although this was unconfirmed. Beckert agreed that was a likely cause.
The head of an Egyptian Internet service provider called the situation a "wake-up call" for the region, which he said is too dependent on underground lines and does not have a strong enough back-up system. Mohammed Amir, head of Quantum, an ISP in Cairo, described the situation as "a major problem," but expressed hope that the worst of it is over.
The two cables damaged are FLAG Telecom's FLAG Europe-Asia cable and SeaMeWe-4, a cable owned by a consortium of more than a dozen telecommunications companies, Beckert said.
He added the options while those cables are repaired were re-routing traffic around the globe or using an older undamaged cable that has less capacity -- both of which would cause usage delays.
Kuwait's Ministry of Communications said the problem could take two weeks to solve, according to a statement carried by the state news agency, KUNA.
There were concerns in India that an Internet slowdown could affect trading patterns at the country's two major exchanges, the National Stock Exchange (NSE) in Delhi and the SENSEX exchange in Bombay.
Rajesh Chharia, president of India's Internet Service Providers' Association, explained that some firms were trying to reroute via Pacific cables and that companies serving the eastern US and the UK were worst affected, AP added.
Besides the Internet, the outage caused major disruption to television and phone services, creating chaos for the UAE's public and private sectors.
The Du internal memo called the situation in Dubai "critical" and stated that the cable's operators did not know when services would be restored.
"This will have a major impact on our voice and Internet service for all the customers," the memo stated. "The network operation team are working with our suppliers overseas to resolve this as soon as possible."
The outage led to a rapid collapse of a wide range of public services in a country which proudly promotes itself as a technological pioneer.
Sources from Emirates Airlines confirmed to CNN Arabic that the outage did not affect its flight schedules -- a statement which assured hundreds of travelers worried after rumors about the possibility of rescheduled flights due to the faults.
However, Dnata, a government group in charge of providing air travel services in the Middle East and ground handling services at Dubai International Airport, acknowledged facing problems because of the outage, sources from its technical department confirmed to CNN Arabic.
The outage heavily crippled Dubai's business section, which is heavily reliant on electronic means for billions of dollars' worth of transactions daily.
Wadah Tahah, the business strategies and development manager for state-owned construction company EMAAR, told CNN Arabic that it was fortunate the outage started Wednesday, when there had been only moderate activity in the UAE markets. He said that softened the blow to business interests.
But Tahah warned that if the outage continued, "such a situation could create problems between brokers, companies, and investors due to loss of control.
Thursday, December 20, 2007
10 key features to consider for buying cellphones
1. Organizer applications: Even the most basic handsets offer organizer applications. Typically, you'll find a calendar, an alarm clock, a stopwatch, and a calculator. Higher-end handsets will have many more options, while other models will offer offbeat applications such as a compass or a thermometer.
The LG enV has a full keyboard for faster messaging.
2. Phone book and voice dialing: Consider how many contacts you can store. Voice dialing lets you make calls without using the keypad, which is particularly handy when you're on a headset or if you're using the speakerphone.
3. Web browser: This lets you surf the wireless Web and get information such as news and sports recaps, weather reports, and stock quotes. It also lets you download files including games and ring tones. WAP (Wireless Access Protocol) browsers are optimized to view sites configured to display on small, mobile devices but keep in mind that not all sites are made for WAP browsing. On the other hand, some newer, high-end phones are including full HTML browsers so find out which you'd prefer. You can use some Internet-ready phones as a modem for your PC, but you'll need to purchase the proper data cables to take advantage of this feature.
4. Messaging and e-mail: Text messages send text only, and multimedia messages send pictures and videos as well as text. Some handsets support instant messaging from services such as AOL and Yahoo. If you'd like to receive personal or work e-mail on your handset, make sure it supports this feature. Messaging and e-mail does cost extra, however, so consider purchasing a data plan if you'll be using the features frequently. You might also consider a phone with an integrated keyboard for faster typing.
5. Camera and video recorder: Use them for taking pictures and shooting brief video clips. Some have a low-grade VGA resolution, but many camera phones now have resolutions of a few megapixels or more, which offer much better photo quality. Similarly, while some camera phones offer just a few extra features, other models offer a flash and editing options that resemble those on a regular camera.
6. Speakerphone/conference calling: A speakerphone is useful for hands-free calling when you're driving or multitasking. Consider getting a unit with a full-duplex speakerphone, which allows both parties to speak at the same time. Business travelers who need to set up impromptu meetings will want to look at a phone that supports conference calling.
7. Push to talk: A walkie-talkie-like service that lets you immediately connect with individuals or call groups, which is especially useful for business users who need instant contact with their colleagues. Best of all, you don't need a cell signal to use them and you won't use standard calling minutes. Not all carriers offer this feature, however.
8. Bluetooth: This feature lets you wirelessly connect via low-frequency radio waves with external devices, such as a headset for making calls. Many phones also allow you to use Bluetooth to exchange or sync data with other Bluetooth devices or to connect to stereo headphones to listen to music. Verizon, however, has limited Bluetooth on some of its phones.
9. Multimedia options and memory: Some features to look for include a digital music player, support for MP3 files, and an FM radio. Also, many phones now support streaming video and videoconferencing through 3G wireless broadband networks, and other handsets can download music over the air. Services will vary by carrier, but Sprint and Verizon both offer music stores. There will be an extra fee, of course, and you'll need 3G service in your area.
For the best experience with a multimedia phone, make sure your phone has plenty of storage space (an external memory card slot is best), and consider whether you want dedicated music controls on the exterior of the phone
10. Accessories, applications, and personalization options: Some phones come in multiple colors or allow for changeable faceplates. Accessories such as Bluetooth headsets, speakers, or SIM card readers also are available, but make sure it's specifically designed for your phone of choice. Most models offer a variety of customization options as well. These can include a choice of display wallpaper, screen savers, and ring tones. If personalizing your phone is important to you, make sure you have a lot of options before buying a particular model.
Handsets will also differ on their support for extra applications. Though every cell phone supports games not every model comes with integrated titles. In that case, you'll have to buy them for a few dollars a pop, and your selection will change by carrier. Extra applications are available depending on your phone model and your carrier. For example, Sprint offers a wireless backup service to save your contacts, while Verizon Wireless has a GPS application called VZ Navigator.
the topic is seen at cnet.Look for more on cnet
Wednesday, December 12, 2007
Dangers of working with pc
Wiggle those toes, stand and stretch to prevent injury and feel better — doctors say too much PC time can do permanent damage.
Your computer can kill you. It’s true. We’re not talking only about the gamers who have died at their machines after days of no food and water, but anyone who spends long hours at a desk. Yes, you do need to worry about words like Carpal Tunnel Syndrome and Cumulative Trauma Disorder.
Take the case of Saurabh, an IT professional who developed aches in his right arm and wrist two years ago. He ignored the discomfort till it got unbearable and then took pain killers. A year later, when the pain reached the point at which he could not manage everyday tasks, he consulted a doctor, who advised treatment and reduction in PC usage to avoid more permanent damage. If it had not been for timely medical help, he might have had to give up his job.
Saurabh’s is not a stray case - several IT industry employees who have been working on PCs for over ten years are now showing signs of RSI (Repetitive Strain Injury) – a wake up call for the rest of us to immediately examine our own PC habits and take preventive measures.
RSI is a condition that arises in the human body when any part of it is subjected to repetitive actions for a long time. Using your fingers to type or navigating with the mouse for long hours, are typical examples of repetitive strain. For instance, if you are playing a game that involves heavy usage of the mouse (most FPS and RTS games are prime culprits); or by simply typing long documents, you are staining certain areas of your body – wrists, arms and shoulders in particular.
The typical computer keyboard forces your hands into an unnatural position and makes your fingers stretch to reach commonly used keys. The mouse, for its part is one of the biggest contributors to RSI. It’s typically positioned far to the right, requiring you to stretch when using it. And having to grip the mouse, then move it and click the buttons, adds to the stress.
Laptops, while being extremely convenient to lug around can be a torture if you are not careful in using them. First, the cramped keyboard makes it more difficult to use compared to bigger desktop keyboards. The smaller arrow keys and absence of dedicated number keys add to the inconvenience.
Touchpads that are not responsive enough compound the problem, more so if they don’t have a smooth scrolling function. While displays on most laptops have come of age, their relative smaller size is an inherent handicap.
On a larger desktop monitor, you have the option to increase resolution or dpi for better readability and still have a good amount of the program window in view. Not so with the smaller displays on laptops, on which you will have to excessively scroll as you decrease resolution.
A problem with many newer laptops are their bright and glossy displays which are good in evenly lit conditions, but cause very noticeable reflection if there is a light source in front of the display, leading to eye strain. It’s not just PCs that can cause injury. Mobile phones are notorious for hurting wrists and fingers.
Manoj, a college student in Mumbai was an ‘SMS machine’, making full use of free SMS offered by his Telco. That is, until his fingers started aching so severely that he could not type messages out. He is currently on treatment and has been asked to use his phone for emergencies only. The problem affects all age groups, and children are no exception. Nikhil, a twelve year old, like most computer savvy kids of his age, was hooked to PC games. Being engrossed in game play, he would go on for hours with very rapid and hard keyboard strokes. Within a year, he was experiencing difficultly in writing.
SYMPTOMS
Computer related injuries do not generally appear overnight (there are exceptions, though). In most cases, the affected person will be able to sense the onset of the problem, if he knows what to look for. The early symptoms of your body complaining about your style of work or use of gadgets is pain in the affected parts, which is more pronounced after working for long hours.
Usually, day long use of the PC results in moderate pain or stiffness or a burning sensation in the neck, lower back, wrists, forearm and shoulders. Once you get off the PC, the discomfort disappears. This is the first stage of RSI, from which recovery is easier. The next stage is when the pain persists even after you stop your activity for the day and relief comes only after a night’s sleep. It is imperative that you seek medical advice at this stage. The third stage is when doing everyday task results in pain, and resting does not help either. If you don’t act at this stage, things will only get worse. The best time for you to react is when you are at the first stage.
Prevention is Better Than Cure
Why should you worry about RSI? Or change your working style? Because, the odds are heavily against you. Three out of four persons in India who interact with PCs suffer from some form of RSI or the other.
This is what Dr. Deepak Sharan who specializes in RSI treatment and is a founder of RECOUP, a Neuro Musculoskeletal Rehabilitation center, has to say after collating data on 27,000 individuals who extensively use computers (his study excludes people who use computers for leisure, like gamers). That’s certainly reason enough to start making changes in the way you work or play and reduce the strain on your body. The old adage for good health is true here as well – preventing injury is wiser and less painful than curing it. After a critical point, fixing the problems created by RSI is a long process, and at times may not be completely effective.
FOR PAIN FREE CLICKS AND KEYS
Input devices are one of the two biggest contributors to computer related RSI (the other being wrong posture). The starting point for tackling RSI must be adopting least stressful and natural posture while using the input devices. Those have us who have not learnt the traditional way of typing that uses all fingers, are at an inherent disadvantage. If possible, learn to use all fingers while typing, which reduces stain on the middle and index fingers. Place your hands on the keyboard such that the wrist is at the same level as the forearm (see illustration).
A raised wrist is strict no-no, which unfortunately is the typing position most of us adopt. Only the fingers need to drop to touch the keys, not the entire wrist. As you type, ensure that the entire arm moves, not just your fingers or wrists. This is essential because, the movement causes much needed blood circulation. This also prevents the smaller muscles in the wrists and fingers from doing all the work, which can done by the stronger muscles in the arm with lesser effort.
Adjust the position of the keyboard, desk and chair such that your forearms point towards the ground and make an angle of about 100 degree at the elbow (see illustration). While some websites suggest placing your wrist on a jelly pad or a ‘support’ provided by the keyboard, Dr. Sharan strongly cautions against this practice saying that placing the wrists on any kind of support, applies pressure on a sensitive nerve near the wrist, thus damaging it.
You don’t need support for your wrists, so long as your posture is right. There are several keyboards and mice available today that claim to be ergonomically designed, but there is no single model that can suit all people. If possible, try them out, look for adequate spacing between the keys and the feel of the keys.
The feel of the keys – tactile or soft, is greatly a matter of preference. But, if typing speed is important to you, a tactile keyboard is generally less stressful. The ideal placement for a keyboard is at your thigh level, with a small negative slope. This ensures that your hand is able to make the 100 degree angle as discussed earlier. If the keyboard is placed higher, your wrists will be forced to rise above your forearm (and rest on a support, which is bad, as discussed) and your forearm in turn will make short angle at the elbow, affecting blood flow. If you place the keyboard at the correct height, you will be able to attain the correct posture easily. When buying a mouse, ensure that it ‘fills’ your hand – a mouse that is too small for your hand is sure to give you pains.
A mouse that is heavy and makes you put more effort in moving it is also not recommended. The buttons must be easy to press and must require you to use the least force to press them. The ‘center click’ in the scroll wheel tends to get hard after a while with many unbranded pieces – stick to established brands.
Clean the underside of the mouse regularly (even for optical models) as dust tends to make the movements rough. If the cord length is forcing you to stretch out to reach the mouse, consider a wireless mouse – prices are as low as Rs 600 for a branded wireless optical mouse. This allows you to place the mouse in a spot that is convenient to you, not restricted by the cord. A good mouse pad can greatly reduce the effort required to operate a mouse – this holds good for optical models as well.
Choose a pad that has a soft cloth covering, rather than a plastic finish. These are the things that your IT purchase department must also consider as well.
WATCH OUT FOR DISPLAY DANGERS
The importance of a good display cannot be over-emphasized. Your eyes, more than any other part of the body are continuously at work as you work on your PC. Being careless here is a sure shot recipe for eye problems. Reading these instructions carefully can potentially save your eyes! Replace your CRT with an LCD if you can afford the upgrade.
A 19 inch LCD monitor costs about Rs 9,000 – consider it as an investment for good health if you are spending the larger part of your day staring at the monitor. An LCD is easier on your eyes with next to no perceivable flickering. If you are constrained to use a CRT, set the refresh rate as high as possible. While this may cause premature wear and tear of the monitor, it’s a lot better than wearing your eyes out.
Set a 75 Hz refresh rate to be on the safer side (reduce the monitor resolution if need be). Note that this does not apply to LCD monitors. At higher resolutions, if you find the text and icons too small to be easily readable, either reduce the resolution or increase the dpi in Display Settings. Increasing the dpi by even 4-6 percent will give you a much larger text. Manually increase icon size as well if you so desire. Set brightness – contrast levels at which can easily read text. Try different levels to find a combination that suits you best.
PAINFUL PORTABLE
If you have to use your laptop for long hours that involve a lot of typing or editing text, using an external mouse and keyboard will greatly reduce the strain on your wrists and arms. Smaller form factor mice are available specifically to be carried around in laptop bags. While most people find them more comfortable than the touch pads on their notebooks, they are still not as good as the general desktop mice. If you are happy with the spacing and feel of the keys on the notebook, an external keyboard is not essential.
Most people who use an external mouse say that it is less strenuous to use them in place of the touchpad. If it is possible for you to connect to a bigger external display, do so. Even at the same resolution, text and images appear bigger on a larger monitor.
EXERCISE HELPS
Nothing can substitute the good old way of keeping health, exercise. Take a compulsory break from work every 30 minutes – walk around, make yourself coffee, step out of the office and look at distant objects like buildings or towers. If your arms ache, move them a bit to increase circulation and gently massage your wrists or rotate them. The same goes for your arms too.
An effective way to reduce eye strain is to close your eyes for a couple of minutes every hour. You need to do this more frequently if your eyes feel sore. Many PC users, especially gamers can get so engrossed with the activity on screen that they just stop blinking thus leaving their eye dry.
General exercises like walking, running, gym sessions improve blood circulation and give strength to your muscles. Consult a doctor to guide you on specific exercises to negate some of the ill effects of RSI. Dr. Sharan elaborates on the need to take breaks during work.
A micro break, taken for a few seconds every five minutes to rotate your arm and gently massage it will help restore blood circulation. A macro break needs to be taken every 30 minutes, wherein, you need to walk around a bit and look at distant objects to provide some movement to the muscles in the eyes as well. Taking these breaks goes a long way in reducing RSI, and must be done compulsorily by people who are already suffering from it. Software such as Microsoft’s Outlook, can be set to give you reminders every 30 minutes.
Computers and mobile phones are marvelous devices that are workhorses as well as entertainers. They have shrunk the world the way no other technology ever has. But, overuse and abuse can cause serious health problems. It is up to the users to take preventive and curative measures to prevent harm. When 75 percent of persons who use PCs for long hours suffer from RSI, it is wise to act. Now.
information from pc world
Monday, November 19, 2007
G Mail Update
A major upgrade to Gmail is getting the thumbs down from users who complain that the new version is extremely slow, often fails to load pages and even crashes their browsers.
People have flooded discussion forums with complaints since Google began "upgrading" users about two weeks ago to the new version, popularly referred to in the blogosphere as Gmail 2.0.
Ironically, Gmail 2.0, which features an upgraded contacts manager, is designed to be faster and more stable. Gmail 2.0 is based on what a Google spokesman calls "a major structural code change" upon which new features will be launched in coming months.
"Most users should see a marked improvement in performance. We recommend using IE7 and Firefox 2 to take full advantage of Gmail's speedier interface," said spokesman Jason Freidenfelds via e-mail.
Asked about the problems users are reporting, Freidenfelds didn't address the complaints specifically but said that Google appreciates the feedback it's getting. "The new code underlying Gmail should allow us to roll out performance improvements more frequently," he said.
Users interviewed via e-mail for this article report a variety of performance problems with Gmail 2.0.
The most common complaint is that it is generally very slow, with delays of a minute or more when attempting to display the inbox upon logging on, to record keystrokes when typing text and to respond to mouse clicks. Often the tasks time out. Others report that Gmail 2.0 repeatedly crashes or freezes their browsers, in particular Firefox.
If these users switch to the "old" Gmail version, the problems go away. However, these users say they have to switch manually every time they log on, because Gmail 2.0 automatically became their default version once they got upgraded to it.
When Google upgraded his account last week, Jim Sellers, a software programmer based in Ottawa, Canada, was eager to try Gmail 2.0's improved contacts manager, but his Firefox 2.0 browser kept crashing both on Windows 2000 and Mac OS X 10.4.
"These problems were very disruptive. I spend at least 25 percent of my day using my browser as one of my main working tools. To have it crash like that made the new version of Gmail a non-option," said Sellers, an otherwise satisfied Gmail user since June 2004.
As a workaround, Sellers has bookmarked the URL for the "old" Gmail version. However, others expressed worry that Google at some point will phase out access to the "old" Gmail without having fully resolved problems.
Some users interviewed also complained that Google didn't notify them that they would be moved to Gmail 2.0, or give them an option to decline the upgrade.
Others, on the other hand, trust Google will soon solve the issues. That's the case of Jack Freeman, a retiree in Oklahoma who, for lack of broadband options in his area, has learned to live with, and make the best of, his relatively slow dial-up connection.
For example, he enjoys posting answers in Google discussion forums, and in recent days has been addressing a lot of questions about the slowness of Gmail 2.0. Freeman's solution to the delays has been to toggle between the two versions of the service. "It is still my favorite e-mail program," Freeman said.
Google is moving people progressively to Gmail 2.0, so some users have it and others don't.
Google didn't immediately reply to a series of follow-up questions, so it's not clear what percentage of people have access to the new version and how many are experiencing problems with it. It's also unclear when Google expects to have everyone on the new version and when the performance problems be solved.
What's clear is that the problems have unleashed a storm of complaints. A search, sorted by date, for "Gmail slow" in the Gmail Help Discussion forum returns about 35 pages of results related to problems with Gmail 2.0.
Wednesday, November 7, 2007
Xbox 360 to Live Long and Prosper
So sayeth the suits at Microsoft, who think the
Xbox 360 has legs to carry it past the typical
five-year lifespan of the average game console.
Well...what else are they going to say?
Sony and Microsoft have turned "losing money to make money"
into a convoluted cash-splash process worthy of an equally
convoluted motivational seminar. Microsoft's Xbox gaming division,
over six years old, is supposed to finally be profitable in 2008.
But that's effectively seven years of net losses,
and more if you count research and development time.
Seven years, which is fast approaching a full decade.
To paraphrase Gordon Gekko, risk is good, risk works, risk clarifies. Mm-hmm.
But what's the ceiling on a money pit?
At what point do you pull a Sega and cash out?
And if you ever "arrive" -- unless you can somehow
mimic the Windows model, where consumers and businesses
are essentially "indentured users" --
what's the guarantee you'll be able to hold on for
more than a month or a year or a single product cycle?
Sony had and arguably still
has the market by the teeth with the PlayStation
2.
Now look at the PlayStation
3.
A year on, hemorrhaging component costs, and Sony
rumored to be pleading with developers to stay the course.
The guys with perpetual game-driven money in the bank, making a profit out of the gate? Who else?
So when we eventually hear how Microsoft's gaming division is finally in the black, or witness the point at which the PS3 turns the curve (and I think a recognizable turnaround's coming) instead of clapping or cheering, all I'll be wondering is: "At what cost?" "TANKS TO PC WORLD
Sunday, November 4, 2007
Manufacturer's description of PS3
The PlayStation 3 was first officially announced May 16, 2005, at a press conference prior to the 11th annual Electronic Entertainment Expo (E3) in Los Angeles. The design of the machine incorporates many successful standards established by the original PlayStation and the PlayStation 2 both of which led the console markets throughout their respective generations but it also offers some new features that distinguish it from its predecessors as well as its competition.
Fittingly, the central feature of the PS3 is its CPU, the Cell processor, which was codeveloped by IBM, Toshiba, and Sony. The PS3's Cell processor uses seven "Synergistic Processing Elements" (SPEs) plus an eighth for "redundancy," and is designed to dynamically handle multiple operations. Graphics are produced through the RSX GPU, which was codeveloped with Nvidia. The console has 256MB of XDR RAM for use by the CPU, and another 256MB of GDDR3 VRAM for use by the graphics chip.
PlayStation 3 games can be written to DVD or Bluray discs (BDs), the higher density format codeveloped by Sony and Toshiba. Like the PS2, the PS3 is backwardscompatible, and can play both original PlayStation and PS2 games, as well as PS3 games. It can also read and play audio, video, and other files from a variety of contemporary media formats, including CDs, DVDs, and BDs.
The form of the PlayStation 3 console is similar in size but somewhat squatter than that of the PS2. It can be operated in either a horizontal or vertical position. When laid flat, the PS3 console case has a squareish footprint, and its top bows upwards, with a fronttoback arch. This case is a silvery gray plastic, and it has a sleek, Spartan aesthetic, with a only the disc drawer plainly visible along its front. Four USB ports are hidden behind a front panel.
More so than its predecessors, the PlayStation 3 was designed for communication and compatibility with other electronic devices. In addition to its Bluetooth functionalities, the console has Ethernet ports and capacity for a IEEE 802.11 b/g "WiFi" connection. Internetconnected gamers can access the web, chat with online friends, and even download content, even while playing a game. The console also reads Memory Stick, SD, and Compact Flash memory, creating opportunities for crossplatform file sharing and other communications between the PS3 and the PlayStation Portable
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