Thursday, May 14, 2009

Why Not Make Registry Backup For Better PC Protection

When people browse websites and download things online, there will be evidence left in the registry of PCs. To avoid possible threat to our computers which may cause the loss of private information, people tend to backup registry and fix the problem of registry by recovering it to the previous status.

There are many ways to backup the registry. Usually people would like to make the backup manually: Start/Run,enter Regedit/right-click My Computer/select export/copy and save in (usually) C:Document and Settings User Name Or Start/Run, enter Regedit/right-click My Computer/select Config under System32/copy and save files named Sam, System, Software, Default and relevant log files/save in C:Document and Settings User Name The problem is that it is always difficult for one to supervise the registry manually and make necessary backups as soon as possible.

As a result, more people tend to turn to some programs so as to simplify the operation. These programs will provide constant supervision over the registry and report when there is any potential problems. But a lot of them will take up a large space and do not help to backup the registry. I myself am using a program named advanced PC tweaker which takes up a small space and functions effectively. It provides a constant supervision and helps to backup the registry in two methods. First, it allows users to backup the registry as a whole. The users can recover the registry to the previous status with this backup. Second, any time when any changes are made to the registry, the program will backup and make a record. This program makes my backup of the registry easier.

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Sunday, May 10, 2009

3 Tips to Consider When Buying an LCD TV

If you really want to improve your home theater viewing, go find and purchase the best LCD. At present, they are the finest electronic device to add to your home cinema. The huge screen will make you feel like you are a part of the scene. So definitely, you would want to find the perfect LCD television for your home. We have listed three of the most important factors to help you identify the most favorable LCD TV for you.

1. Forget the used LCDs. This is the first thing that you need to keep in mind is to never settle for a used television unit. Of course everybody understands the importance of finding a good deal, but purchasing used televisions especially LCDs are not really worth it. With the emergence of different models and styles of LCD TVs from top brands such as Samsung, Sharp, Sony, and Philips, prices have crashed down a little and almost everyone can afford to buy brand new. Visit as many stores as possible and surely you will find a reasonable deal. This will ensure you that the unit will work and can be repaired or returned under warranty in case problems arise.

2. Search and Explore for Features. Yes price is definitely important, but features are as important as your budget. Obviously, you purchased an LCD for entertainment purposes so make sure that the television unit you are getting has the most features a TV can offer. Do pay attention to the price but pay more attention to what the TV can give you. By considering what the unit can do for you, you get your money's worth.

3. Compare and evaluated prices and brands. Do not hesitate to do research first. Compare units from several brands, and do compare prices too. There are chances that you will get cheaper rates at different stores. This price and brand comparison may take hours of your shopping time but this will give you the advantage of paying a little for an immense entertainment quality.

Remember these three points while you are on your search for the ideal LCD TV and you will certainly find a great deal of entertainment and value for your money.

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Saturday, May 9, 2009

A Dream Camera From Samsung

Are you dissatisfied with your old film camera and have some disappointment with your first digital camera? Well, last July Samsung announced their new point and shoot digital camera, the TL 34HD. Amazing is not too strong a word for this state of the art camera.

If you have been beguiled by the quality photos taken by DSLRs but are reluctant to lay out two thousand dollars for a heavy, bulky camera when all you need is a pocket friendly digital camera for kids shots, vacation memories and the occasional wedding in the family.

The TL boasts state of the art features all combined in one package. Fourteen point seven mega pixels allow artifact free sharp enlargements up to 24 x 30 photographs. More important is the fact that you can crop the image severely without loss of quality. This feat is possible due to the large number of pixels, the 25% larger CMOS sensor and the advanced processing used by Samsung.

While the amateur photographer occasionally appreciates having manual controls, the average shooter would rather rely on automatic operation and foolproof results. Aiding you in this endeavor is a three inch diagonal LCD screen with 460,000 pixels of resolution rather than the usual 290K. Also helping you is the anti-glare reflection applied to the screen's surface. This amazing screen is operated by touch. Just tap your finger on the area you want from the menu and the camera does the rest. Even manual focusing can be executed this way.

Other automatic features right out of the future are: face detection, optical and digital image stabilization, 5x digital zoom, 80 to 3200 ISO sensitivity, beauty shot, and blink detection. The beauty shot can be used for smoothing blemishes for outstanding, clean portraits. The blink detection can be a shot saver when you can't go back to do it over.

The lens is the heart of a camera and the single most important quality requirement for good, sharp pictures. The TL is fitted with a Schneider 3.6X zoom lens. The equivalent range comes out to 28mm true wide angle to a decent 102mm medium telephoto. The 5x digital zoom is quite effective when necessary because of the large number of pixels you have to work with. The maximum telephoto extension comes out to about 500mm. Here the dual image stabilization is a God send. For those close up shots of flowers, engagement rings and Mother's Day cards, this lens takes macro pictures at five centimeters with the wide setting and at 50 centimeters at the telephoto setting. When you are finished taking pictures, the lens collapses flush with the body and seals itself with an electric operated lens shade.

This camera is less than four inches long and has metal construction throughout. The design is simple but eye-catching in its fashionable colors of satin silver and red, silver with a gold top or even all brushed stainless black.

I've left the best feature for last. The ability for photographers to create an instant video with sound has recently been a feature adorning many digital cameras. Unfortunately, until now, the video portion has been minimal in quality - about like an analogue television picture - and the sound screechy and distorted. Enter High Definition 1280 x 720 video and stereo sound. With only one limitation of five minutes continuous video, the TL produces an amazingly true movie, viewable on a computer monitor or an HD LCD television screen. Helpful is the Samsung HDMI cradle which allows the regular use of the TV remote. One especially useful feature is the TLs ability to pause the movie action momentarily, then continue seamlessly when ready. Previously, digital cameras created separate clips when stopped. Four qualities are available for movie production, all at thirty frames per second for a professional look. Gratefully, Samsung chose to allow zooming while videoing. I recommend a high speed 16Gb SDHC chip if you plan on using the video feature extensively.

Shutter speeds of 1/2000th to 8 full seconds can be critical to stopping action to long night time exposures. The usual features of Aperture Priority, Auto White balance, and many others are of course present. The ISO sensitivity is usually automatically chosen by the camera according to need but the higher ISO capability of this camera allows candid photography without flash in low light levels for a natural ambiance look to the photos.

A nice element is the recycle bin that stores all your photos and videos even after you delete them. You never know when you will change your mind and regret your deletion and want to retrieve them for posterity. All these features and outstanding image quality is contained in a package three inches high and weighing less than five ounces. The TL can be had for $273.00, and adding $50.00 for the cradle, $17.00 for an extra battery and $140 for an Ultra III SDHC card, you will be ready for anything.

About the Author: A retired portrait and wedding photographer, I enjoy writing , how to articles, helpful articles on photography and many other subjects. My hobbies include quartet singing, shop, bicycling and photography.

Please visit my web site at http://www.photoartbyken.com [Articles, Digital Art, Poetry, Original sheet music.]

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Friday, May 8, 2009

Tarzan Would Die For One of Your Fur Scarves

Many women want to know, what is the position on animal prints and patterns in today's fashion wear? Here's our answer: Used carefully as an accent piece, the animal print or pattern can really make a wardrobe stand out. Clearly, though, too much of a good thing becomes a bad thing, such as the leopard skin pantsuit or the alligator skin skirt!

Of particular note is how well mink, rabbit, or fox designer fur scarves can look. This popular look for today will stop people in their tracks as they look to see that gorgeous piece of fur around your neck.

Keep the rest of your outfit clean and plain and simple and use this as an accent piece to draw attention to your face. Don't dress in too many different colors as this can make your outfit seem too busy. And remember that fur always looks good paired against cream.

Should you wear designer fur scarves? Yes! But be sure to choose wisely. Here are some pointers.

If your hair style is larger, choose a finer, smaller fur scarf so that the two aren't competing for attention. If you have a plain do, especially if it's swept back and off your face, you have a lot more freedom in choosing which fur designer scarves to wear.

Conscious about animal rights? Don't forget that there are many faux fur scarf options that look real and fantastic.

Additionally, all women would do well to have at least 2 or 3 silk or organza furscarves in their closet to spice up their wardrobe. These are great for neck wraps, head wraps, or even to tie around your wrist or ankle as a small piece of -flash- ...an accessory that draws attention to a great feature.

Don't forget that fur scarves aren't just for the formal event. You'll look great at the office when you add one to your work wear (a very conservative piece) and when you're out for drinks with friends after work or spending time by the lake on the weekend, a scarf shows that you're really put together without a lot of fuss or muss. Designer fur scarves are gorgeous fashion accessories that are really coming into their own this season as an accessory that the trendiest women must own. And many women are discovering just how great these are to throw away the feeling that your wardrobe is old and drab. Don't spend that money on a whole new wardrobe! Pick up a few fur scarves, mix and match, and feel like a new woman again!

They can make all the difference!

Fur scarves are becoming very popular in fashion circles. Besides keeping you warm and cozy during the cold winter months...they look good and feel good! Choose from mink, fox, rabbit, faux (fake fur) and other soft to the touch fur scarves and garments. You will absolutely love them! They look gorgeous, expensive (although they're probably not) and fashionable in all formal fashion events.

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Saturday, May 2, 2009

3D Graphics = 2D Graphics + Third Axis + Many Techniques

Going beyond flatland (2D graphics) is more of a challenge than merely adding another axis. Many techniques are applied together to map the high expectations of mind onto the 2D displays. To render a 3D scene, techniques such as shaping, shading, textures, lighting, reflections, hidden-surface removal, perspective projections are employed.

Shaping is the first step in 3D technology. A 3D shape can be constructed using basic geometry (polygon, simplest being triangle), mathematical modeling (equations), or graphics techniques like lofting, lathing and extrusion where a 2D object is moved over a well-defined path in 3D space. A warping technique, deformation grid, is also used. The result is usually a wire-frame model.

Shading is then used to provide skin to wire-frame model. Flat shading model is the crudest technique that does no smoothing. Gouraud shading, a smooth-shading technique, creates color gradients based on the location of an object's face with respect to a light source. But the technique lacks, sharp highlights and shadow casting. This problem is solved using another smooth-shading technique called Phong shading which is based on how we perceive the colors. It uses ambient, diffuse and specular optical properties of the material of which the 3D object is made up of.

Texturing is next step towards achieving realism of 3D object. While the ray-traced rendering use optical properties of the material, the non ray-traced rendering use mapping i.e. overlaying bitmaps over surfaces of object to create a realistic texture. Texture maps, bump maps and reflections maps are fundamental map types.

Hidden-surface removal algorithms like Z-Buffer algorithm and perspective projections are employed to create the real effect of relative positioning of objects in the 3D world.

3D visualization is different 3D graphics as the former provides interactivity as well. A user can navigate through the virtual world by changing the scene viewpoint or maneuver objects by applying operations like translation, rotation and scaling.

A 3D animation is another buzz which is basically a sequence of frames rendered at rate greater then Perception of Vision (20 frames/second).

The 3D world specified as vertices, after various transformations, is rasterized and display. This process constitutes the graphics pipeline. The graphics pipeline has following stages:

  • World Transformation
  • View Transformation
  • Projection Transformation
  • Clipping and Viewport Scaling

Syed Feroz Zainvi has obtained M.Tech. (Comp Sc & Engg) degree from Indian Institute of Technology, Delhi (INDIA). His areas of interests are distributed computing, computer graphics and Internet Technologies. Currently, he is involved in Software Project Planning, Development and Management. His other interests include writing for magazines and contributing utility softwares on Magazine's CDs. He also have flair for teaching computer science with new teaching methodologies. He maintains his computer science notes at http://computer-science-notes.blogspot.com

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