Prevent Your Computer From Virus and Spyware Attack

What is a computer virus?

Virus is a harmful program which when runs on a computer may alter the information, files and damage data stored in it.

How a computer gets infected from virus?

1. From Infected Floppy Disk

2. From infected files downloaded from website.

3. From infected files from a infected CD

4. From infected E-mail attachment.

5. From running an unknown program or code on your computer.

 

What precautions or measures we can take to prevent virus from entering into our computer?

 

1. We should only use floppies that are from known source and are properly scanned from an anti-virus.

2. We can install a good firewall on our computer.

3. We can install good anti-spyware on our computer.

4. Never open an E-mail from an unknown person or unknown source.

5. Install a good Anti-Virus on your computer.

6. In the Internet Explorer go to go to Tools icon then go to the Internet Options.

Then click the security tab and select Highest security option on the slider.

Then click Apply and Ok. This step will help you from restricting harmful viruses and Trojans from entering into your computer.

The above instructions will help you reducing the risks of saving your computer from any Virus Attack.

 

What we should do when a virus attacks our computer?

 

1. First of all we should try to back-up our data that is most important to us.

2. If our computer is on network, just disconnect it from the network so that the virus should not spread in to the other computers.

3. Now run a good Anti Virus on the computer to scan for the viruses.

4. After the viruses are found by the anti-virus try to remove them with it.

5. Some times the viruses are internet Trojan horses or spyware, in that case you should use good anti-spyware to remove them.

Posted in Virus

HDTV Setup

You've just broken your new high-def TV out of the box, hooked it up to your cable box and fired it up. And chances are, you love the picture. But after the initial joy of seeing that screen in action wears off, you might be wondering: How can I get the most out of it? Here are a few tips.

Get a high-def source

The single most important thing you can do to get your new HDTV looking its best is to hook up an actual high-definition source. For television programming, that means an HDTV-capable cable box or satellite box–or an antenna. Ask your cable or satellite provider for a high-def box or DVR, and they'll hook it up for you (although it's a good idea to double-check their work; see below). If you don't have cable or satellite, try using an antenna to tune over-the-air HD stations, which are available in most areas.

Most TV services offer both standard-def and high-def channels, and if you have an HDTV you'll want to be watching (or recording) the HD versions. If your box allows it, you might be able to select a list in your programming guide that shows only HD channels.

You might also want to consider getting a Blu-ray player. The picture quality on standard DVDs looks very good on an HDTV, but Blu-ray discs look even better, especially on larger screens. Just don't expect the player to make regular DVDs look noticeably better on your TV–it can help, but usually not by much.

Other HD sources include game consoles like Xbox 360 and PlayStation3 (but not the Nintendo Wii, which is standard-def), media players like Roku and Apple TV, and even newer digital cameras, camcorders and computers.

More info: HDTV 101: A beginner's guide, Blu-ray guide

Use an HDMI connection

The cable guy might connect your box using analog component-video cables, but HDMI is really the way to go. It's worth buying an HDMI cable to get the most out of your TV. HDMI cables are often quite expensive in stores, however, so we recommend buying a cable from an online vendor like Amazon, newegg.com or monoprice.com. For the vast majority of viewers, it's not worth spending extra for an HDMI cable.

More info: What HDMI cable should I buy?

Set up the source resolution to match your TV

Here's where a lot of even experienced HD owners (not to mention cable box installers) get confused. HD sources can have a lot of settings, and to take full advantage you'll want to match the resolution of the source as closely as possible to the capabilities of your TV. If you have a 1080p TV–the most common resolution among new models–you should set the source to 1080i or, if available, 1080p resolution. If you have a 720p (or 1366×768) TV, set the source to 720p resolution.

If the source lets you choose among other resolutions, check off every one that the TV can support. If there's a "native" option available, we recommend most users check that one off as well. These steps allow the TV to perform the video processing, and usually TVs do a better job of it than cable or satellite boxes. If you have a Blu-ray player and a TV that can handle 1080p/24 sources, we also recommend engaging that option. Computers should be set to output the native resolution of the display, as long as the TV can accept it. Check your manual if you're not sure what source resolutions your TV can support.

More info: HDTV resolution explained, PS3 Blu-ray settings

Adjust screen format (aspect ratio)

Now that you're watching HDTV, you might notice that the screen often isn't completely full. That's because the wide format of the screen doesn't always perfectly fit the source. The first step is to make sure your source is set to the wide-screen (or 16:9) format mode. The next is to adjust the aspect ratio control, which can zoom, crop, stretch or properly display the image. The confusing part, aside from the name "aspect ratio," is that such controls can be found on both the TV and the source.

In general we recommend setting the TV to the mode that fills the screen without distortion when fed a high-def source, yet preserves the full resolution of that source. Such modes can be called "Native," "Dot-by-dot," "Just Scan," "Full Pixel," or others. Some TVs have a secondary control to enable this native mode, then require you to select "Full" or a similar mode to fill the screen without zooming or stretching. Try cycling through the modes on your TV by pressing the button that controls aspect ratio repeatedly, just to get familiar. The manual will also have a section devoted to this control.

For TVs connected to cable boxes with their own aspect ratio controls, the least confusing route is to select the recommended TV mode as described above, then control aspect ratio using the box's own control. But results vary widely, and it's important to remember that some sources, like non-wide-screen TV shows and many movies, look best when you leave the bars on the screen.

More Info: Quick Guide to aspect ratio

Adjust the picture settings

If you thought the section on aspect ratio was confusing, brace yourself. The myriad picture settings available on many TVs can leave the most experienced techie baffled. Fortunately there are some shortcuts to adjusting your picture for optimal quality.

First try cycling through the presets. They have names like "Standard," "Movie" "Dynamic," and "Sports," and each typically delivers different brightness, color and other characteristics. Many TV watchers are content to choose a mode they like and leave it at that.

If you're not, it's time to dive into the individual controls. You can make basic adjustments by eye with the right program material, invest in a setup disc on DVD or Blu-ray, or even spring for a full-fledged professional calibration. You could also try using the picture settings we at CNET publish as a part of our TV review process.

More Info: HDTV Tune-up tips, CNET's HDTV picture settings forum

Consider tweaking your room

Room lighting can have a big effect on picture quality, so when you can we recommend watching in a dim or dark room. When that's not possible, you should avoid letting a light source, such as a lamp or even a window, reflect from the TV screen. To avoid windows you might even want to consider moving your seating configuration to avoid reflections.

Conserve power

HDTVs can use a good deal of power, especially large models with bright picture settings, so if you want to be a greener TV watcher you can definitely take a few steps. Check out TV power saving tips for more info.

Still confused about how to get the most out of your new TV? Check out CNET's Home Audio and Video forums. Think you have a good tip I missed here? Leave a comment below.

Posted in Home Audio

Home Theater Wiring

A Few Installation Tips

Do not run home theater cables in close proximity or parallel to other electrical lines, nor run your wiring around power supplies as these can lead to interference issues with both your audio and video system components.

Avoid splicing your wiring at all cost, as it leads to a lowering in performance. In addition, always use direct speaker wire runs straight from your amplifier to each speaker. This is the way you normally wire your sound in the home theater but in the case of a multi-room audio installation, some may simply skip on this and splice the speaker cable along the way. Doing so may not only lead to a detrimental effect but equally important, makes fault tracing even more difficult later should problems arise.

Leave plenty of extra length at each end of your cable runs. And if your home theater wiring is part of a renovation project, it is also advisable to cover the extra cable lengths and termination/junction boxes. The plastering/painting process that follows can be really messy.

In this whole process, ensure to keep your wiring simple and organized. Use cable management products where necessary. Label all cables to make tracing easier. Use plastic conduit where possible; it would not add much to the overall home theater wiring cost and apart from the added protection, it also provides some added future flexibility. And in for those instances where you will not be using conduit or trunking, make sure to secure the wire to the studs, wall, etc, by using an appropriate cable tack or clamp.

Posted in Home Audio

Speaker Calibration

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Posted in Home Audio

Home Audio Consultation

We currently do not offer home audio setup services.

Posted in Home Audio