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Top Internet Security

Posted by Saboor Adem Wednesday, March 31, 2010 0 comments

The year 2009 was a bad one for PC security: Online attackers created more malware last year than in the previous 20 years combined. Clearly, this means that in the realm of computer security, the rules have changed, and you can no longer rely solely on traditional definition-based antivirus software and firewalls to protect your PC. Instead, to meet this new breed of threats, you need a new breed of security.

Over the past few years, security suites have been improving, thanks both to the enhancement of traditional detection methods and to the addition of behavioral analysis. The latter technology detects malware based exclusively on how it acts on your PC--a good way of catching threats so new that security vendors haven't yet made definitions to identify them.

And many suites now have cloud-computing features that compare questionable programs and files against online databases to better identify the latest threats. With these cloud features working alongside behavioral analyses, suites can better detect malware they've never seen before.
Almost all the security suites we tested this year also in­­clude some form of antirootkit technology. (Rootkits--a kind of stealth malware used to hide infections--were once the concern only of big businesses, but they have gradually become more commonplace.)
All these changes mean that security suites are detecting and blocking malware faster than ever.

Nonetheless, we found some significant differences in just how well security suites protect your PC. We tested 13 suites in all. Norton Internet Security 2010 took the top ranking, owing to its strong overall malware detection. Kaspersky Internet Security 2010 was a close second. AVG Internet Security 9.0 placed third for its malware detection and speedy system performance. Closely following the top picks was a com­petitive middle tier of suites from Avast, BitDefender, McAfee, Panda, PC Tools, Trend Micro, and Webroot. The suites from Eset, F-Secure, and ZoneAlarm lagged, due to acceptable, but not great, malware protection.

For antimalware testing, PCWorld contracted the services of AV-Test.org, a respected security testing company. We looked not only at traditional signature-based detection but also at how well the suites cleaned infections, removed rootkits, and detected malware based on behavioral analysis.
But what if the suite slows your system performance to a crawl? This year we added a battery of tests to measure such drag: changes in boot times, application launch times, and the time to create or open a batch of documents, among other tests, both with and without the security suites running (see "The Performance Hit" below).

All the suites we reviewed had anti­virus, antispyware, and antispam components, plus a firewall. Some, such as Eset Smart Security 4 and PC Tools Internet Security 2010, had little beyond those core functions. The rest offered extra capabilities, such as parental controls, online backup, and Internet browser protection.

Here's our list of the suites, in order of rating, plus our Top 10 chart. Click on any name to see the full review.
Norton Internet Security 2010
Kaspersky Internet Security 2010
AVG Internet Security 9.0
PC Tools Internet Security 2010
BitDefender Internet Security 2010
Avast 5.0 Internet Security
McAfee Internet Security 2010
Panda Internet Security 2010
Webroot Internet Security Essentials
Trend Micro Internet Security Pro 2010
F-Secure Internet Security 2010
ZoneAlarm Internet Security Suite
Eset Smart Security 4
Top 10 Internet Security Suites of 2010
The Performance Hit
Every time we run our annual security suites showdown, we get plenty of feedback from readers. (You can add your own comments at the bottom of this article.) The most common question: How much will a security suite slow down my PC?
For this year's roundup, we included a battery of tests to evaluate how security suites affect your PC's speed. Our testing, conducted by German security lab AV-Test, measured 11 key aspects of a suite's im­­pact on PC performance: boot time, application launch time, file copy operations, application installation time, and more. We also looked at how quickly a suite will scan your PC for viruses and other malware.
Alwil's Avast Internet Security had the least impact on system performance, with faster-than-average scores in all tests, and very good scan speeds.
While top-ranking Norton In­­ternet Security didn't have quite as light an impact on system performance as Avast, it put up very good scores overall, though performance dragged a little more than average in a couple of tests. Norton also had faster-than-average scanning speeds.
Another big name, though--McAfee Internet Security--was one of the weaker performers here. It had a heavier-than-average impact on PC performance in most tests, and its on-access scan speed (which simulates how well a suite can scan for malware when files are opened or saved to disk) was the slowest of all the suites we tested.

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HTC Touch

Posted by Saboor Adem Tuesday, March 30, 2010 0 comments

The Taiwanese mobile manufacturer HTC is in no way lagging behind any other major mobile makers in terms of technology or innovative product features. The only thing its lagging behind from others, perhaps is the hype that others create or get. It quitely entered the wold market and our countrymen now don't hesitate to vouch on HTC's touch phones. And that too in the era of Apple iPhone.
Following groundbreaking innovations like the Android-powered G1 and the iPhone-bothering Touch HD, Taiwanese whiz kid HTC has gone back to the future with its latest handset, an updated version of the original Touch from 2007. many telecommunication countries have always loved new technology and poses as the biggest market for the mobile manufacturers. However, its a budget conscious country too. HTC launched the Touch Viva.

It's launched with an alternative budget handset with the same styling as the Touch 3G, but offers a few updated features over its predecessor. With higher specced alternatives seemingly emerging almost weekly from HTC, the HTC Touch Viva is more easily defined by what it is missing, most notably a 3G connection, GPRS and a 3.5mm jack, plus it's several megapixels short of a decent camera.
Holding back to the original Touch's form factor, with a large D-pad flanked by call start and stop buttons, it manages the trick of being slightly larger than its predecessor, but lighter too, and comes at a little over half the price of an HTC Touch or Pro.

It uses the lessons learned from the Touch's shockingly rapid learning curve, but the cost-cutting omissions soon make themselves known. It has the TouchFLO interface riding on top of the Windows Mobile 6.1 Professional OS, for instance, but not the slightly more groovy TouchFLO 3D. It doesn't look as good, but it looks okay, certainly better than the original, and it's every bit as practical.
It was a strange decision to recess the touch screen though, which means it's awkward to reach it with your thumb at the edges, where the scroll bars are. It means you're encouraged to use the stylus, whether you want to or not. There could be an argument that the recession helps to protect the screen, but not as well as the cover that came with the original Touch (there isn't one with the Viva), and what's the point of protection if it interferes with useability?
Almost as debilitating is the lack of 3G, though it will deliver quad-band GSM as well as 2.5G GPRS and EDGE. You'll find Wi-Fi included though, so higher-speed browsing isn't an impossibility, you'll just be a bit restricted about where you can do it.
The screen is a sizeable 2.8-inches with 240x320 pixel resolution - nothing that's going to push the envelope but perfectly adequate for what's required. The internal memory has been beefed up to 128MB from the painfully measly 64MB of the original and there's a microSD card slot too, though it's under the battery so unlike the original Touch, it's not hot-swappable.
Perhaps surprisingly, the 210 MHz TI OMAP 820 processor is the same as that in the original Touch. Improved processor speed is generally given with updated smartphones, though to be fair, it only seemed to struggle when we had half a dozen applications running at once. Listening to music while browsing the web for instance, didn't present any problems.

The browser defaults to Opera, though Windows Explorer is also available, and browsing is for the most part every bit as good as on other recent Touch models. You can move around web pages by brushing the screen in whichever direction you choose, and pressing the zoom icon onscreen produces a slider which allows you to adjust the page size to whatever you like. Unfortunately, there's no accelerometer on board, and no option to switch the display's orientation to landscape mode, the best way to view full web pages.

The onscreen keyboard is just about big enough to work with thumbs, though again, the lip of the recess can make it a bit tricky to reach the characters at the extreme edges of the screen. We also missed having the option to flip the handset on its side, which might also have made room for larger keys, though switching to compact Qwerty keyboard mode, where each key has two letters helped speed things up a bit.

HTC's addictive YouTube connection is here, allowing you to browse and view the site's online video with ease and fortunately, it switches to landscape in this app for viewing video.
The camera sports a mere two megapixels, which seems almost perverse in these eight-megapixel plus times. The camera has always been the weak link on HTC's Touch devices, with even the five-megapixel version on the recent Touch HD failing to deliver as well as other similarly specced snappers and with no autofocus or flash, photography is clearly not a priority here. That said, there's a 2x digital zoom and the pictures aren't bad if they're taken in reasonable light and don't have much movement going on in them. Viewing pictures isn't as much fun as on other Touchs models however, as the Viva doesn't do the automatic zoom thing when you move your fingertip in circles on the screen, or allow you to brush your way to the next picture.

The music player is the same as other Touch handsets and very good it is too, even through the surprisingly punchy loudspeaker. Disappointingly though, it doesn't come with any headphones, which wouldn't be so bad if it had a 3.5mm headphone jack, but it only has the USB type, so you'll either need to use headphones which already have one of these connections (which are usually pretty shoddy) or you'll need to get an adaptor. Either way, you're probably not going to be listening to music or viewing videos on the bus straight out of the box, which seems unnecessarily stingy.

Battery life is better though, and we got a good couple of days of average use out of it, something we always struggled to manage with the original Touch.
It's not so sexy from a spec point of view, but with its attractive price point, the HTC Touch Viva could prove to be popular with corporate road warriors who get their works phone provided for them. If the recent highly specced versions of the Touch have been a bit rich for your blood and pocket, then this is a perfectly worthy alternative, and if you really need 3G connectivity (and GPS) on a budget, you can always step up to the Touch 3G.

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Google Nexus One

Posted by Saboor Adem Sunday, March 28, 2010 0 comments

Google stepped up its attack on the smartphone market on Tuesday, introducing a new touch-screen handset called Nexus One that is widely seen as a rival to Apple’s iPhone.

Google also said that it would sell the Nexus One, which it called a superphone, exclusively through a new online store.

Google, which earns the vast majority of its revenue from advertising, said it was dipping its toes in the direct retailing business not to reap profits from the sale of phones but to broaden the availability of handsets running its Android software.
“There is an opportunity to make some margin on the unit sales, but that’s not the objective here,” Andy Rubin, a vice president of engineering in charge of the Android technology, said during a press conference at Google’s headquarters here. “Our primary business is advertising.”
Consumers will be able to buy the Nexus One for $529 unlocked or for $179 with a two-year calling plan from T-Mobile. Google said that the Nexus One would be available on Verizon Wireless in the United States and on Vodafone in Europe later this year. It said it hoped to add other devices and carriers to the direct-to-consumer program in the future.
Some analysts said they were impressed by the speed of the Nexus One and by some of its capabilities. Google has voice-enabled all text boxes in the device, so a user can, for example, compose an e-mail message by speaking into the phone rather than typing. But they expressed disappointment that Google had not done more to shake up the industry by, for example, subsidizing the phone through profits from advertising.

“It would have been nice to see them roll out something really unique,” said Danny Sullivan, the editor of SearchEngineLand and a longtime Google analyst. “It is more evolutionary than revolutionary.”
The Nexus One, which was built by HTC, a Taiwanese electronics manufacturer, has a 3.7-inch screen and runs the latest version of Google’s Android operating system. At less than a half-inch thick and 4.6 ounces, it is slightly thinner and a tad lighter than the iPhone. It has a removable battery, a 5-megapixel camera with an LED flash and can shoot both still images and video.
Google executives called the Nexus One “exemplar” of what is possible with Android today. They said Google was pleased with the success of Android, which in little more than a year has grown from one device on one carrier to 20 devices with 59 carriers around the world. But they decided to work closely with HTC to design the best possible device based on its software.
The only person in the room who did not appear ready to concede that the Nexus One was the best Android device in the market was Sanjay Jha, the co-chief executive of Motorola, which recently introduced the Android-based Droid.

“I think the Nexus One is a good phone; I think the Droid is a good phone,” Mr. Jha said. But Mr. Jha appeared to embrace Google’s plan to market phones directly to consumers. “I see this potentially as an expansion of the marketplace,” he said.
Similarly, cellphone carriers appeared unperturbed by Google’s plan to sell unlocked phones directly to consumers. “We certainly welcome bringing more choices to the marketplace,” said John Taylor, a spokesman for Sprint. Jeffrey Nelson, a spokesman for Verizon Wireless, said his company was aware of Google’s plans for a store when it signed a broad cooperation agreement with Google.
For now, the Nexus One phone works only on cellular networks using the G.S.M. standard, which in the United States is used by AT&T and T-Mobile. It can run on AT&T’s network if the unlocked-phone owner has an AT&T SIM card, but it will work only on the older and slower EDGE network, not the faster 3G network, Google said.
The Nexus One has a high-speed 1-gigahertz Snapdragon chip from Qualcomm, which keeps multiple applications running quickly. It has some 3-D display capabilities, and Google collaborated with Cooliris, a Silicon Valley start-up, to incorporate that company’s technology, which showcases photos along a scrolling wall of images. Google also introduced a version of Google Earth that runs on the Nexus One.
“It looks like a really cool phone,” said Charles Golvin, an analyst with Forrester Research. “But it is not a game changer.”
Peter Chou, the chief executive of HTC, refused to disclose sales forecasts for the Nexus One, but he said that the device “pushes the limits of what’s possible on a mobile phone today.”
While the Nexus One may be a rival to the iPhone, Google and Apple are approaching the cellphone market with very different strategies: Apple makes money by selling phones and Google makes money by selling ads. But there is little doubt that the two companies are on a collision course.
If the Nexus One or other devices sold through Google’s store succeed, they could eat into the appeal of the iPhone. Meanwhile Apple said Tuesday that it had acquired Quattro Wireless, a mobile advertising start-up, indicating that it has plans to attack Google’s core advertising business.

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Computer Batteries

Posted by Saboor Adem Tuesday, March 23, 2010 1 comments

Types of batteries

There are three types of computer batteries found on a computer. The first type of battery is the backup battery, which is commonly referred to as the CMOS battery. This battery is what holds your computer's computer settings, such as the time and date. This allows your computer to remember basic computer settings and allows you to boot the computer without entering those settings each time you start the computer.
Next, the bridge battery is only found in portable computers and is used as a temporary backup for the main battery. This allows you to remove the main battery and replace it with a good battery without having to turn off the computer.

The third type of battery is the main battery. The main battery as explained above is also only used with portable computers and is used as an alternate source of power for when the computer is not connected to a standard wall outlet.

Battery technologies

Li-ion:-Short for Lithium-ion, Li-ion is a fragile technology requiring protector circuit, the Li-ion is used where very high energy density is needed and cost is secondary. Li-ion batters are generally more expensive but have never experienced memory issues that have affected other battery technologies.

Pioneering work for the lithium battery began in 1912 by G. N. Lewis but it was not until the early 1970's that the first non-rechargeable lithium batteries became commercially available. Attempts to develop rechargeable lithium batteries followed in the eighties, but failed due to safety concerns.

Lithium is the lightest of all metals, has the greatest electrochemical potential, and provides the largest energy content. Rechargeable batteries using lithium metal as an electrode are capable of providing both high voltage and excellent capacity, resulting in an extraordinary energy density.

After much research during the eighties, it was found that occasional shorts from lithium dendrites could cause thermal run-away. The cell temperature quickly approaches the melting temperature of lithium, which results in violent reactions. A large quantity of rechargeable lithium batteries sent to Japan had to be recalled in 1991 after a battery in a cellular phone exploded and inflicted burns to a man's face.

Because of the inherent instability of lithium metal, especially during charging, research shifted to a non-metallic lithium battery using lithium ions from chemicals such as Lithium-Cobalt Dioxide (LiCoO2 ). Although slightly lower in energy density than with lithium metal, the Li-ion is safe, provided certain precautions are met when charging and discharging. In 1991, Sony commercialized the Li-ion and is presently the largest supplier of this type of battery.

Li-polymer:-Short for Lithium Polymer, Li-polymer is a battery technology that is a lower cost version of the Li-ion that first started being used in 1996.

Nicad-Trademarked name for a Nickel-Cadmium battery owned by SAFT America Inc. Nicad is a type of rechargeable battery, made mostly of of nickel and cadmium. A primary problem with nickel-cadmium batteries was that they needed to be completely drained of power before they could be recharged.
Known as a memory loss or memory effect, if the battery was not completely drained, once the battery reaches its last low level, the battery would go dead, assuming that no power was left.
NiMH:-Short for Nickel-Metal Hydride and also abbreviated as Ni-MH, NiMH is a type of rechargeable battery used primarily in portable computers.

Research of the NiMH system started in the seventies as a means for hydrogen storage for a Nickel Hydrogen battery. The metal hydride alloys were unstable in the cell environment and the desired performance characteristics could not be achieved. As a result, the development of the NiMH slowed down. New hydride alloys were developed in the 1980's that were stable enough for use in a cell. Since the late eighties, the NiMH has steadily improved, mainly in terms of energy density. Design engineers have indicated that the NiMH has a potential of yet higher energy densities.

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What is WiMAX?

Posted by Saboor Adem Monday, March 22, 2010 0 comments

WiMAX or Worldwide Interoperability for Microwave Access, known also as IEEE 802.16, is a telecommunications technology that enables data transmission with broadband speeds and wide coverage without a need for physical connection. WiMAX enables:
-Wireless portable/mobile broadband connectivity.
-Wide cell phone like coverage
-Wireless alternative for cable and DSL last mile broadband access.
-Wireless broadband connection that does not require line-of-sight connection between subscriber and base station.

What is the difference between WiMAX and WiFi?
Distinguishable difference between WiFi and WiMAX are speed and coverage area. Look at the comparison below.
On the technical side, moreover, WiMAX operates on licensed spectrum where frequencies are exclusively allocated to the carriers. Thus, the operators will be able to emit more power without fear of interference. While WiFI, on the other hand, operates on unlicensed spectrum posing the possibility of interfere with other devices. Reportedly, baby monitors and microwave ovens had caused signal overlapping with WiFI.
On the technical side, moreover, WiMAX operates on licensed spectrum where frequencies are exclusively allocated to the carriers. Thus, the operators will be able to emit more power without fear of interference. While WiFI, on the other hand, operates on unlicensed spectrum posing the possibility of interfere with other devices. Reportedly, baby monitors and microwave ovens had caused signal overlapping with WiFI.

How fast is WiMAX compare to current broadband technologies?
Typical WiMAX speed is very competitive compared to prevalent broadband technologies. Considering that most of those technologies are wired, requiring additional cables for operation, WiMAX capabilities show flexibility and velocity at the same time. Consider the following comparison of WiMAX internet with existing and upcoming broadband technologies;

Can WiMAX offer mobile functions?

Yes. Approved in late 2005, the fixed WiMAX 802.16d have now a mobile extension, IEEE 802.16e, optimized for mobile applications. This new standard adds features to WiMAX to support wireless connectivity for moving clients, thus enabling subscribers to access the internet with high speed while in motion. With this standard, devices with built-in mobile WiMAX cards would be able to maintain broadband connection even when they are in the train or a car.

Who offers WiMAX Services? How much does it cost?

In the US, WiMAX broadband for residential and business services are currently offered by the MetroBridge Networks, Towerstream, Valtech Communications, Clearwire, Sprint Nextel, NextWave Wireless, Open Range, Conterra, Open Range Communications, Conterra, RazzoLink, DigitalBridge, Nth Air, NextPhase Wireless ,Rapid Systems, Sling Broadband and Rainbow Broadband in limited areas. WiMAX costs starts from $29 a month for residential and $300 for business plans.

What is the future for WiMAX?

Once widespread, WiMAX can prove its ability to cover a whole city or even a whole country. Undeveloped nations, for example those who cannot still afford nationwide cable infrastructure, would benefit hugely through WiMAX because cable construction is waived. Moreover, the reduced cost and increased coverage would allow financially challenged people to afford internet connection where ever they are. Business oriented people on the other hand would benefit as much, as the mobile broadband service would increase opportunity and stimulation, bringing the internet wherever they are.

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The Easiest Way to Email or Send Large Files to Anyone

Posted by Saboor Adem 0 comments

Miximum 20MB can be sent through email. some time if need to send more than 20 MB, can utilize following link. its easy and free.
The Easiest Way to Email or Send Large Files to Anyone http://www.transferbigfiles.com/

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What does mean 3G ?????

Posted by Saboor Adem Sunday, March 21, 2010 0 comments

Telecommunications companies nowadays, boast about their 3G services and its coverage. But what does a 3G network mean? What is the 3G wireless internet network that we can get through our phones all about? Can we really get mobile internet access comparable to the wired broadband internet? In this article, you would find out the meaning and endeavors of 3G, together with details necessary to appreciate and take advantage of 3G networks.
What is a 3G Network?
Third-generation or 3G, also known as IMT 2000, is a family of radio interfaces which evolved from previous generations to facilitate wider range of services and advanced network capacity. According to the definition of ITU (International Telecommunications Union), 3G includes the following technologies:
  • EDGE (Enhanced Data rates for GSM Evolution)
  • CDMA 2000 (Code Division Multiple Access)
  • UMTS (Universal Mobile Telecommunications System)
  • DECT (Digital Enhanced Cordless Telecommunications)
  • WiMAX (Worldwide Interoperability for Microwave Access)
What is 3G capable of?
It enables network operators to offer subscribers a wider range of advanced services while achieving greater network capacity through increased bandwidth, transfer rates and spectral efficiency. 3G networks are intended to facilitate smart phone advanced capabilities such as the following.
  • Higher data speed
  • Enhanced audio and video streaming
  • Video-conferencing
  • High speed Web and WAP
  • IPTV (TV through the Internet)
How do we use 3G?
To access the 3G network, you need to have 3 things:
  • 3G Compatible Device
  • 3G Network Subscription Plan
  • 3G Coverage
First, you need to have a 3G device which may be a 3G phone or any device with a 3G embedded module. Devices other than 3G mobile phones, such as video cameras, gaming devices and even vending machines are able to accessible to the network as long as it has a 3G embedded module. Furthermore, portable integrated 3G USB modules that would enable laptops to access the network are also available to the market.
Secondly, you need a subscription to a 3G network service provider to get 3G connectivity. These services are often called data plan or network plan. SIM cards or data cards helps the service provider identify its subscribers at this point.
Lastly, to access the 3G phone network you need to be in 3G cities or area where it is available. Through the 3G device and subscription plan, you can access the 3G network whenever within the 3G network. But even if you are not in one, you could still you the previous generation features provided by your carrier because 3G have backwards compatibility. The list of carrier coverage is included on the last part of this article.
What are 3G Mobile Phones?
When we speak of 3G devices, one single device comes to our mind: 3G phones. Simply explained, a 3G phone is any phone which is compatible with the 3G network; it could access the 3G network if given a data plan.
The difference between previous generation phones may not be obvious to the consumers, although there are few similarities among 3G phones which are obviously aimed to maximize the 3G features. They commonly have two cameras, one allowing the users to have video calls and the other for regular camera functions. It also requires a SIM card which enables the service providers to identify the subscribers. Other than that, is usually caters applications that enables video/music download and internet access.
What are SIM cards? And how do we use it?
A SIM or subscriber Identity Module card is a removable memory chip that stores service-subscriber key that is used to identify the subscriber inside a network. It also stores contact numbers, text messages and other data allowing the SIM card user to switch to a new phone easily, by simply inserting the SIM card from the old to the new cell phone.

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