Saturday, November 6, 2010

Securing Your Wireless Computer

Wireless Internet connections aren't just convenient for you-they also may be convenient for hackers. Fortunately, it isn't difficult to protect yourself.

Wireless systems can be particularly vulnerable to digital intruders, possibly putting sensitive or private data at risk. However, you can protect yourself by using WEP or WPA encryption, which require users to enter a password before they are allowed to access your wireless network.

These encryption methods are described in easy-to-understand language in a new book called "Geeks On Call Wireless Networking: 5-Minute Fixes" (Wiley, $14.95). The book also offers expert advice and step-by-step explanations of topics ranging from configuring a wireless router to troubleshooting a slow connection.

Here are some additional tips from the book that can help you protect your wireless network.

1 Reduce the range of your network. Doing so can keep nosy neighbors from intruding on your connection. Move your wireless router into the center of your home and decrease its power settings.

2 Pick a new password. Most routers have a default password of "admin." Be sure to change it.

3 Disable SSID broadcasting. Most wireless routers broadcast the names of user networks (SSIDs) so that other users can log on. This could be a security risk.

4 Use encryption to protect credit card information you send wirelessly over the Web. Also, only use your card on a Web site that has SSL encryption (look for a padlock in the corner of the site).

• Disable your wireless card when not in use. There's no better way to secure your computer.

5; Use a firewall, which is a program that shields your computer from Internet criminals.

6 Don't use shared files. Remove all important documents from your Shared Files folder before accessing a public network.

7 If you use a wireless laptop, disable the feature that attempts to connect your laptop to any available wireless network. For most Windows-based laptops, double-click the wireless icon in the lower right corner of Windows. Then click "Properties." Click the "Wireless Network" tab. Next, click the "Advanced" button. Uncheck the "Automatically Connect to Non-Preferred Networks" option. Finally, click "Close."
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Hardware and Software


The equipments like tools, keys, locks, chains and all the other equipments that are made up of metals and are used in mechanical processes like repairing or maintenance in the process of dealing with machines. With hardware people are sometimes confused between hardware and computer hardware. But there is a major difference between hardware and computer hardware.

What is computer hardware?
All those components of computer system that are tangible and on which either input could be given (like keyboard and mouse etc.) or output could be received (like monitor and printer etc.) are known as computer hardware. These hardware components of computer system themselves do not generate instructions but process the instructions generated by either software or user.

Computer hardware is only a subset of word hardware that is when we say computer hardware we only mean the hardware used in computer system but if we say only hardware we mean all the hardware that can be used in any machine. Computer hardware includes following parts in computer system like: keyboard,
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Friday, November 5, 2010

The technology behind satellite radio

Any song you hear on satellite radio stars as a recording in a specific format on different recording mediums. IN most cases, the recording quality has to be maintained fairly high, usually around 384kb/s, while also being reasonably small enough to be transported on CDs and DVDs. The music tracks used in satellite radio are cataloged using a similar system to the MP3 cataloging criteria, the ID3 tags. The choice for the music tracks that will be played is made by each channel individually. The DJ selecting the tracks usually chooses about 20-30 minutes worth of music. The DJ has to listen to the tracks to make sure they are in proper condition and then simply lets the computer decode the original file. The same thing is repeated once the initial 20-30 minutes are exhausted and the music playing cycle repeats itself.

Sound encoding in satellite radio

Encoding is one of the key elements of digital radio. Each channel is handled by a different encoder. The encoder basically takes the analog file and turns it into a digital one. The digitalization process is made in real time and the music files are transformed into 1's and 0's. This process is carried out by powerful computers
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Thursday, November 4, 2010

Banking Software: Do You Need It?

Whether you are considering the purchase of banking software for your personal use or for your business use, there are many reasons to consider this type of software. For one, you will reap many rewards. For another, it will relieve much work from your shoulders. But, do you need a banking software? You probably do not need a banking software if you maintain your checkbook accurately. You probably do not need it if you know how much you are spending on your various expenses each month. You also probably do not need it if you know how much of your income is going towards savings. But, then again, are any of us good at this type of organization?

Banking software really can help you manage your everyday and monthly expenses. It can help you to know what is happening in each function of your business as well. Who are you paying and how much are you
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Wednesday, November 3, 2010

Personal Wireless with Bluetooth

If you already have a wireless network for your computers, you may be very interested in what's coming next. Would you like it if your PDA, your mobile phone, your mp3 player and almost everything else you connect to your computer could be wireless too? It's already a reality...

Personal Area Network.

Using wireless networking with your personal gadgets is often called PAN, which stands for Personal Area Network. The idea is that, in the future, we'll all have laptop computers with their batteries charged and no more need to connect any wires to them at all -- you just place your Bluetooth device near the computer, and the computer sees it and can use it straightaway.

Bluetooth has been around and in-use since 1999, and it's only getting more popular. It was designed to be secure, low cost, and easy to use from day one.
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Tuesday, November 2, 2010

Finding free web space on the Internet

There are some good deals on the internet concerning web space and hosting but you have to look to find the best deals. You should also consider how long a provider has been in business.

Finding free web space on the Internet is simple. All you have to do is use a simple Web search (Google, AltaVista or Yahoo) and the results should bring back options for free web space. There are many individuals and businesses looking for a place to put their website without having to pay for the service. These free services can provide anywhere from 5MB to 100Mb of online web space for hosting your web site.

Free sites also come with some cool stuff, such as counters, guest books, virtual domain names, tracking logs, blogs, copy and past scripts that are usually Java code scripts and more. These additions are good for people that have little or no knowledge into building a web site.

A free service provides benefits to all people and may sound like a good idea but the goal is to do your research to see if the deals are viable or not. Free services can also bring other unwanted things that you have to deal with when you sign up for the service. Usually, you have to submit to advertising and surveys by filling out a form before you can get your free service. Be sure that you read the user agreements that come with the free services.

You can go on the cheap and don’t want advertisements running on your site, you can get a service similar to free hosting but you would have to pay a small fee to keep your web page ad-free.  Some of these providers will offer you a service for $2.95 a month with 100MB of web space if that’s all that you need, and you can always upgrade your packages.
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The Importance of A Good Design

Your website is the hub of your online business; it is the virtual representation of your company whether your company exists physically or not. When you are doing business online, people cannot see you physically like how they could if they were dealing with an offline company. Hence, people do judge you by your covers. This is where a good design comes in.

Imagine if you are running an offline company. Would you allow your salespersons to be dressed in shabby or casual clothes when they are dealing with your customers? By making your staff wear professionally, you are telling your customers that you do care about quality. This works simply because first impressions matter.

Similarly, the same case is with your website. If your website is put together shabbily and looks like a 5 minute "quick fix", you are literally shouting to your visitors that you are not professional and you do not care
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Monday, November 1, 2010

How Do Wireless Networks Work?

Wireless networks work using radio waves instead of wires to transmit data between computers. That's the simple version. If you're curious to know what's going on in more detail, then it's all explained in this article.

Ones and Zeros.

I'm sure you know that computers transmit data digitally, using binary: ones and zeros. This is a way of communicating that translates very well to radio waves, since the computer can transmit ones and zeros as different kinds of beep. These beeps are so fast that they're outside a human's hearing range -- radio waves that you can't hear are, in fact, all around you all the time. That doesn't stop a computer from using them, though.

Morse Code.

The way it works is a lot like Morse code. You probably already know that Morse code is a way of representing the alphabet so that it can be transmitted over radio using a dot (short beep) and a dash (long
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