User:Sushanta rony

Color Picker by Jinsun Park

Designer Jinsun Park from Korea has come out with a simple tool called Color Picker. Place the pen against an object and press the scan button, the color will be detected by the color sensor and the RGB cartridges in the pen will mixed the required inks to create the target color.

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iPod, iPhone gadget accessory that can sync, store and charge Normally my eyes tend to glaze over when it comes to the hundreds of accessories available for the iPod or the iPhone, but this relatively compact USB dongle from Macally seems to be pretty useful. On one end you’ll find a standard USB connection but on the other there’s the 30 pin connector used by the iPhone and the various iPod’s for charging and syncing. I guess the primary use of the PowerLink is as an emergency backup battery to extend the life of your device if you happen to be away from a power source.

Unfortunately there’s no details on the Macally site as to how much longer you can expect a device to run with the PowerLink attached, but given its size I don’t think we’re talking hours and hours.

The PowerLink can also be used as a substitute sync cable between your PC and iPod/iPhone if you’ve forgotten or chose not to carry the standard cable. Given the fact that it’s not flexible like the cable though, it might be a bit awkward to use if you don’t have a table or flat surface to put the devices on. But as an added bonus Macally has also crammed 2GB of flash memory in there so it’s even useful as just a USB flash drive. While it’s still listed as ‘Coming Soon’ on the Macally website, when it is available the PowerLink will sell for $49.99.

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HOW TO Speed up a Sluggish Computer? Are you frustrated by your sluggish computer? With regular use, even the newest PC will slow down significantly. Here are some suggestions to free up PC resources and get that computer back in shape!

Instructions

Step 1 - Free up PC resources by deleting old programs: get some of that unused space back. In Windows XP go to start -> control panel -> add/remove programs. Highlight any program that you do not use and click REMOVE.

Step 2 - Free up PC resources by getting rid of adware and spyware: these two parasites threaten your privacy, expose you to unwanted advertisements and most importantly, slow down your computer. Free programs such as Spybot S&D and AdAware make it easy to remove adware and spyware. Simply install these programs, update them, run a scan and remove the intruders!

Step 3 - Free up PC resources by cleaning your start up files. These are files that run automatically as soon as you boot up your computer. Many of them are unneeded and are only taking up space! Besides removing spyware, Spybot S&D can also help you clean your start up files. With Spybot S&D running click the "tools" button on the left. Then click "system startup" on the left. Uncheck any entries that are highlighted in red, as they may be malicious files. Uncheck any entries of any color that are unwanted. Your computer will speed up as soon as you restart your computer!

Step 4 - Free up PC resources by cleaning your registry. Easy Cleaner is a program that can help you accomplish this. Make a backup of your registry before deleting registry entries.

Step 5 - Clean your junk and temporary files will also free up PC resources. You might be surprised at how many junk and temporary files your computer is storing! Programs such as CCleaner can help you delete these files quickly and easily.

Step 6 - Defrag your hard drive. Over time, files become misplaced and this can slow down your computer. Defragging puts files where they belong! In Windows XP, go to windows explorer and right click your hard drive. Scroll down and select properties. Click the tab named tools, and then click defragment now. Finally, select your hard drive and click defragment. Let your computer do the rest!

Step 7 - Reboot your computer, your PC resources are now freed up and you should notice a significant boost in speed.

Tips & Warnings - All programs mentioned in this article can be downloaded for free at majorgeeks.com. - Be careful when deleting files from your computer. - Be sure to make a backup of your registry before editing it. - These steps should be repeated from time to time to ensure that your computer continues running well.

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How do helicopters stay floating in the air?

Essentially, helicopters stay up for the same reason airplanes move forward through the air. A rotating propeller creates changes in air pressure, lowering it in some areas and raising it in others. Combined with a specially curved wing, the effect is known as lift, and its what pulls an airplane forward or allows helicopters to lift off the ground vertically. Without some sort of rotary propeller system, neither aircraft would ever leave the ground.

There are two basic types of aircraft, fixed-wing and rotary-wing. A traditional airplane would be considered a fixed-wing aircraft, because the wings are in a rigid position behind or over the propellers. Helicopters, on the other hand, are rotary-wing aircraft, because the wing-shaped rotor blades spin in a circle above the aircraft's body. The individual blades of a helicopter's rotor are adjustable during flight, while a fixed-wing aircraft's wings have very few moving parts.

The reason why helicopters stay up in the air is because the individual rotary blades are shaped like airplane wings. Once the spinning rotor assembly has reached a certain speed, the curved blades chop up the air around them, creating lower pressure above the blade and higher pressure below. This action creates a pushing or lifting force from below. The pilot uses hand and foot controls to change the angle of attack on each blade as they spin. This angle affects whether the helicopter will rise, descend, turn, or even hover.

When the blades are held level, the helicopter may remain in place or lift slightly. If the pilot lowers the back of the blades, the resulting change in lift will send the helicopter upwards, much like a kite will fly higher when angled against the wind. If the pilot raises the back edge of the blades, the helicopter will descend. By varying the position of each rotary blade, the helicopter will move to the left or right. As long as the rotor is spinning at a sufficient speed, a helicopter should remain in the air.

One major problem helicopter pilots face is the tendency of the helicopter to turn in the opposite direction of the rotary blades. A second rotary propeller placed in the rear of the helicopter helps to counteract this natural tendency by pushing against the spin. This second rotor also helps stabilize the helicopter during a difficult hovering maneuver. Without the aid of a rear rotor blade, helicopters would routinely spin out of control and crash.

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Let your computer download and change wallpapers for you

There are number of wallpaper changers that will change the wallpaper on your computer after pre-defined time from selected set of wallpapers. How about a program that downloads fresh wallpapers from internet and change it for you?

Free application Bee Wallpapers does the same. It automatically changes your desktop wallpaper at predefined intervals or at windows startup. It sits in system tray and you can pause the randomizer at any time by right clicking in the system tray.

It directly download wallpapers from their regularly updated wallpapers collection. All wallpapers are saved in a tree structure and you can even drag - drop images on your computer into this application.

You can create your own categories and subcategories. It also displays current date on desktop. You can preview wallpapers from within the program before downloading them. Download Bee Wallpapers to make your computer download and change wallpaper for you, automatically!

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What is the Difference Between Troubleshooting, Testing, and Debugging?

Spend any amount of time working or playing on computers and soon you’ll hear three words bandied about: troubleshooting, testing and debugging. While the first two are common enough, their meanings might seem blurred or even synonymous. In practice each of these actions is different, though related.

Troubleshooting is the bane of the end-user and customer support technician, and begins when software or hardware does not perform as expected, giving an unanticipated or otherwise unsatisfactory result. In many cases user error is at fault.

The first step in troubleshooting is to cover the basics. Is the software or hardware installed properly? Is it configured properly? Have you read the manual and followed all instructions? Maybe you changed something in your system that precipitated the problem? Have you been using this product all along, or is it a new install?

If it’s a new install you can almost be sure that the trouble lies in the installation process, particularly in the case of hardware. Hardware requires a device driver (software file) that acts as a bridge or interface between the hardware and the operating system. If the device driver fails, the hardware cannot communicate properly with other system components. Device drivers might not be present or might have been installed in the wrong order relative to the device.

If the problem lies in hardware that was working perfectly fine up to the present moment, corruption of the device driver might be the cause. Reinstalling the driver might solve the problem. An updated driver might also do the trick. Other times, reseating a component in the motherboard by powering down the computer, extracting the component then reinstalling it takes care of the issue.

Troubleshooting hardware in Windows™ operating systems is also available through the Device Manager and Help menus. A yellow exclamation mark next to a component in the Device Manager indicates a problem.

Software that starts behaving badly might also be corrupted. Reinstallation can sometimes help, but if a program began acting up after new, unrelated software was installed, there might be a conflict between the two. Firewalls and anti-virus programs are notorious for not playing together nicely, and it’s probably wise to stick to just one program in each of these categories unless you are an advanced user.

Troubleshooting in general usually involves reading manuals or help files, going over the basics to eliminate user error as a potential cause, and using a search engine to investigate how others have solved the problem. If there’s one thing you can always count on as an end user, it’s that someone has walked in your shoes before. The Internet community is very good about providing help, and in most cases answers can be found by diligent searching.

Testing is the precursor to debugging. Testing is commonly the forte of programmers and advanced users, and occurs when a product is new or is being updated and needs to be put through its paces to eliminate potential problems. Testing identifies “bugs” or imperfections so that they can be corrected in the debugging process, before the [next] official release of the product. These “unofficial” releases are known as beta releases (e.g. 3.0b), and public volunteers are known as beta testers.

Beta testing is a valuable resource for software developers because of the varied computer systems participating, combined with the sheer number of hours and scenarios under which the program is used. This flushes out unforeseen problems in a way that can’t be effectively achieved using in house debuggers only. The beta testing phase gives authors a good idea of the readiness of a product for the public domain.

Hardware is beta tested as well but since it is financially prohibitive to provide free beta hardware to the public, hardware testing and debugging is commonly done in house. Beta products might, however, be premiered and in some cases distributed in limited numbers to industry insiders at conferences such as COMDEX.

Beta software is specifically made available for testing and is not considered a stable release. Beta testers install beta software at their own risk, and to help software developers identify the source of a problem, they must supply a healthy amount of information when reporting a bug. Required data varies but generally includes system specifications, beta version and build, the exact conditions under which the bug occurred, and error message content.

Debugging is the forte of programmers and developers, and involves fixing the very code of the software to eliminate errors or bugs. Developers attempt to replicate beta-reported bugs on in house systems for the purpose of eliminating them.

While there are many types of debugging tools, a simple example is a tool that allows the programmer to monitor program code while manipulating it to execute various commands and routines. One basic approach is to simplify the code as much as possible at the suspected troubled spot, while still replicating the problem, narrowing the focus to potential problem lines. In reality, debugging is a complex process that requires different approaches based on factors such as the complexity and length of the software code itself, and the language it’s written with.

Debugging can be a tiresome task, though some languages are easier to debug than others. Java, for example, includes routines that handle exception errors. An exception error occurs when the program encounters a situation that must be addressed before the program can continue on properly. In this case a built-in routine initiates a “search” within the various layers of software code, looking for an answer to the problem. If a fix cannot be found, a fatal exception error occurs and the program shuts down. The resultant error message might include a memory address or some other cryptic data that will not help the user but could be valuable for debugging. Well-written programs should not have fatal errors.

Older programming languages like C or assembly are not as transparent and do not handle errors so efficiently. Debugging programs written in these languages can test the skills and patience of the debugger.

Thankfully for the end user, commercially available software has already been debugged of major flaws. Due to this very reason, most problems encountered by the end user fall within the purview of troubleshooting and can be fixed by means previously mentioned. On those occasions that an end user does encounter a bug, going through the motions of troubleshooting can reveal a work-around until the bug is fixed by the developer.

When asking for help on a Web forum or newsgroup, be sure to do your homework ahead of time. Troubleshooting is time consuming, and people who volunteer their help appreciate someone who has made an effort to find answers. Inquiring about a problem that has been asked and answered repeatedly will not win you friends and is considered poor netiquette.

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Now get an ATM machine right in your living room

At first look, the ATM Bank looks like a toy. You know, the sort of thing best summed up with a remark about training our kids to regard banking as a consumption facilitation service. As it happens, it's pitched as a serious at-home alternative to the real thing!

Wouldn't it be ideal to have a cash machine in your front room? There's nothing worse than having to walk half a mile down the road in grotty weather to pick up your very own money. This nifty mini ATM Machine is the piggy bank of the new millennium. Every time you make a deposit the ATM keeps a running total giving you an account balance you can keep tabs on on a regular basis. Withdrawing money couldn't be easier, just pop the card in the slot, enter your PIN and select the amount you need. The high street in the comfort of your own home and without the 'Sorry- Out of Order' disappointments.

It costs £25 and you don't get a free toaster for opening an account. What's the overdraft policy?

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Activate Automatic Login on Windows XP

If you’re sick of having to click a button or enter a password every time Windows XP boots up, there’s a quick and easy way to eliminate this step. It involves editing the Windows registry, though, so you must be careful to follow these directions exactly.

Step1 Click the Start button and select Run. Type “regedit” in the field and click OK.

Step2 Browse to the registry key titled “HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsNT\CurrentVersion\Winlogon.”

Step3 Double click DefaultUserName and enter your account name. Click OK. Then double click DefaultPassword, enter your current password and click OK. If DefaultPassword does not appear, create the value by clicking the Edit menu, selecting New and then selecting String Value. Name the value as DefaultPassword. Once it’s created, double click Default Password and enter your chosen password.

Step4 Double click AutoAdminLogon and enter “1” in the Value Data box. Click OK. If AutoAdminLogon does not appear, create it using the same method in the step above and set the value as 1.

Step5 Close the Registry Editor and reboot your computer. You should log into Windows automatically.

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Now 400 GB LAPTOP hard disks from Toshiba Toshiba just bested its own 320GB hard drive with a 400GB offering in the same 9.5-mm height form factor favored by most thin laptops.

That's as good as it gets unless you can track down Sammy's elusive 500GB Spinpoint M6. The MK4058GSX spins just 2 platters which means the disk sports an impressive 477Mbit/mm2 (308Gbpsi) areal density while consuming 20% less power (0.0015W/GB energy consumption efficiency) and 2dB less noise than its own 320GB predecessor. Rounding out the specs are a 12-ms average seek and 8MB cache. Toshiba also boosted the rest of its 9.5-mm, 2.5-inch, 3.0Gbps SATA disk lineup to 7,200rpm including the 320GB MK3254GSY. Mass production of the 400GB slab is expected to begin in September while the 7,200 HDDs will hit the market in August. No prices announced yet.