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One USB host controller can have only 5 levels of branching, via hubs, and no more than 127 connected devices.

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CMYK and RGB Color Models PDF Print
Written by Xilocex   
A Color Model is a defining method by which colors are reproduced for various different medias. In addition to pure light, which is based on reflected wavelengths of light at different frequencies, there are two other Color Models commonly used today, RGB and CMYK. These two Color Models are executed in very different ways, which makes them also useful in different ways.

The CMYK Color Model is a subtractive color system. Subtractive meaning that this Color Model is based on the use of dyes applied to a surface in order to absorb the visible wavelengths of light that one does not want to represent. In other words it is subtractive because media represented in this way actively stops the refraction of light that is not consistent with the color represented, thus only reflecting that which is meant to be perceived.
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Service Advisory-Nikon PDF Print
Written by RustyAvenger   
Service Advisory - Nikon D2H, D70, N55, Coolpix 3100, 3500, 4500, 5000, 5400, 5700, SQ

I own a Nikon Coolpix 5700 and really love it. I was upset when it started to display visible defects through the viewing lense (like looking at bad tv reception). I was even more upset when the errors showed up on the pictures I took. Since the error was intermittent, I figured it must have been an old battery or moisture causing trouble. Then my viewing screen went totally black and I could no longer take any pictures. I went to Nikon's website to see if there was anything I could do and found a service advisory covering the issue that would have Nikon fix my camera for FREE.

Apparently a limited number of COOLPIX 3100, 3500, 4500, 5400, 5700, and SQ digital cameras contain an electronic component that may, in some instances, fail affecting the camera's performance and/or operability.

Read the full service announcement, print the Return Form and read the FAQ:
Click Here
 
Email Etiquette PDF Print
Written by Wordsmith   
Is it email or e-mail? According to Webopedia both are correct. Email like everyday life has etiquette guidelines. These guidelines are not mandatory but have become widely accepted.

When composing an email always include a subject. Be specific and meaningful when filling in the subject line. When a person receives large amounts of email it may be their only clue that this message needs immediate attention.

Pay attention to spelling and grammar. Email is all about communication and even though it is fast it shouldn’t be short changed when it comes to readability.

When composing email a block style, flush left, is used with two spaces between paragraphs. Keep sentences short and to the point.
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Parallels PDF Print
Written by Xilocex   
I actually don't dual boot anything on my main computer, which is a Macintosh, instead I use Parallels Desktop for Mac which is great for what I do because with no performance hit I can simultaneously run multiple operating systems at the same time. Ya, I know I sound like a Parallels ad but this is really great software, it sure beats rebooting and all the complexity of messing with boot options. Not to mention you can easily compact and backup all your Guest Operating Systems and deploy them where ever you need them.

There is a Windows version as well as a Mac version of this software but unless you have an Intel or other processor with VT technology you won't enjoy your experience as much. So the rule of thumb is that if you have an Intel processor newer than and including an Intel Core Duo, and at least 2GB of RAM, then your good to go as for AMD I don't know what their VT technology offerings are but last I checked they where about to produce something along those lines.

You can test drive and buy Parallels for Windows at: http://www.parallels.com/en/products/workstation/
You can test drive and buy Parallels for Macintosh at: http://www.parallels.com/en/products/desktop/
 
Getting The Most Out of Search Engines PDF Print
Written by RustyAvenger   
Search engines are our main tools for finding specific information on the web. Without search engines we would have to know the URL to all websites we want to visit. This would make things like researching and discovering new content nearly impossible.

Even though we use the term “search engine” to mean all websites that provide web searching capabilities, in actuality there are four types of search engines. There are those that use robots (crawlers or spiders) such as Google, those that use directories such as OpenDirectory, those that are a hybrid between robots and directories such as Yahoo, and those that use pay per click. In all types we are really searching an index of websites that the search engine contains. How these indexes are created is what makes them different.
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