[ HOW TO UBUNTU ] Connect LCD Projector

Easy way to connect LCD Projector:
1. setting your display resolution to 800x600 or resolution that can be supported by your projector.
2. use this

magic word

on terminal:

xrandr --auto

Good Luck

Remote PC via Bluetooth (for presentation)

This is a trick to remote the PC or Notebook via bluetooth, especially for presentation purposes. but it tricks also you can use to remote for other applications that you wish.
To do this trick you need a bluetooth active in your PC or notebook and a mobile phone that has bluetooth and support for java applications (JAVA midp 2). In this tutorial I use a Compaq Presario V3000 notebook and Nokia 6300, but you can use other peripheral comparable.
First, install the Nokia Wireless Presenter application on your PC, you can download at http://nds1.nokia.com/files/support/apac/phones/software/Wireless-Presenter-EN_UK-Setup.exe .
Then install the java aplication on your mobile phone: presenter.jar (eg for nokia 6300) you can download at http://nds2.nokia.com/files/support/apac/phones/software/Nokia_6233_Wireless_presenter.zip .
Then equate "Bluetooth Serial Port (incoming)" is in the application with bluetooth port on your PC.




You can also add or modify application that you are going to remote.

How To Speed Up Your PC

you have a problem with the speed of your PC? sometimes very frustrating to work with a slow PC. So we need to improve the performance of our PC.A registry cleaner is the answer! Registry cleaners are one of the fastest ways to get more speed on your PC, whether it is three years old or six months old, a registry scan and clean can produce some amazing results. You should always look at the reviews of the registry cleaner before you buy it. You want to look for a registry cleaner that has both pros and cons, but overall has lived up to its reputation. Do not purchase a registry cleaner that has glowing reviews as it is most likely a scam.

Once you have purchased the registry cleaner, install it on your computer. You should then restart, and then make a backup of your registry. In order to make a backup of your registry, click on start, run, type in "regedit" then hit enter. Now go to file, select export and save the file to external media such as a USB stick. Now you can run the registry scan. This process may take a few moments, so feel free to stand up, walk around, and do whatever you wish while the scan is running. After the scan has finished, check the list of infections and problems for anything that looks legitimate. Sometimes, registry cleaners can report false positives, files that you actually will need in order to keep your computer running. After you have removed the false positives, you can allow the registry cleaning program to take care of the rest of the problems and infections. It will now prompt, or automatically restart your computer. This will allow the registry to clear those errors for good, and restart in a clean condition. You should notice an extreme improvement in speed, due to the reduced size of the registry.

How to speed up my PC? Maybe your computer is not quite as fast as you have wished. There are a few things that you can do after having already done a registry cleanup. Try to defragment your computer's hard drive. This groups your computers files together, and will save time when you are switching programs, or files. Disk cleanup is another useful tool. It can help you increase the amount of disk space on your computer by deleting files in the recycle bin, temporary internet files and other unnecessary files.

How to speed up my PC? If all of these different tricks have not worked, and you have run an anti-virus and spyware program to remove infections, it may be time to take a look at your systems processes. Many of these are not necessary to operate your computer, and can be disabled. There are several guides available that tell you which ones are necessary, and which are not. Make sure you are careful, as disabling the wrong process can cause serious damage to your computer.

When you are trying to speed up your PC, you will need a registry cleaner that has been proven to remove all of the infections and problems on your computer. Do not use false knockoffs, or free versions as they will cause further damage to your computer!

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Article Source: http://EzineArticles.com/?expert=Jacob_Turner

Cisco Acknowledged Training Centers For 640-802 Test

Who need Sisco Certificate? It's a usefull certificate for the network technician.
Cisco Certified Network Associate 640-802 test is to determine candidates' both theoretical knowledge and practical skills in small and medium sized enterprise branch network. While it is possible to learn it yourself, the theory part, you will certainly need the guidance of experts when it comes to developing your practical skills in networks.

There are several websites that offer practical training for 640-802 test. While Cisco press itself has released a number of books on various titles for self-study, experts recommend that joining online training centers would be very beneficial for both 640-802 test conducted by Cisco as well as when on job. A list of things to practice provided in this article will be of great help to you as you plan to attempt your 640-802 test.

For instance, you should get yourself trained to create a network of two computers using cross-over cables; to be adept in creating bus network, mesh network, and star network; to configure hub, switch, router, and DHCP on the network; to successfully experiment with VoIP; to create intranet; to configure modem, router, ISDN, and internet connections; to use of commands like ping, pathping, and TRACERT; to verify configuration and connectivity of network interface card; to familiarize with various types of media, cables, connectors and the like.

A few other areas to acquaint yourself before attempting the test include configuring of wireless LAN; troubleshooting VLANs; both configuring and troubleshooting of Cisco switches, VTP, VLSM IP addresses, OSPF, EIGRP, and RIPv2; using CLI with various commands; debugging commands; configure and apply access control on various filtering needs; using CLI to configure NAT; experimenting with Frame Relay on Cisco routers; and verifying PPP connections among Cisco routers. As all of the above mentioned can not be practiced without help or proper guidance, it is wise to abide by the counsel of the experts in getting your Cisco Certified Network Associate certification for 640-802.

Now, It's time to reveal my success with CCNA 640-802 exam by using 640-802 exam Questions and Answers. I am very proud of being CCNA Certified now!

Article Source: http://EzineArticles.com/?expert=Francis_Murphy

3 Reasons to Own a Computer

Computers make our duty easy. What did we ever do without computers? I am not sure I even remember the time when they didn't exist. Computers rule our world, and most everything we do. Kids as early as the age of three know how to use them and many of us find them indispensable in our daily lives. Yet there are many people that have not yet delved into the technology of the present and future. Some find computers intimidating and unnecessary. Hard to imagine, but true.

The convenience factor cannot be beat and as far as information goes, nothing is faster or more useful than typing a phrase into Google or Yahoo search and getting back thousands of relevant pages full on information. Not to mention the instant communication benefits of email versus regular mail, which is now appropriately termed snail mail. So, in case your still wondering what the benefits of computers are, here is a list which hopefully will prompt you to join us in our computer happy world.

3 Reasons to Own a Computer

1. The first benefit for owning a computer is finding information on the Internet. The Internet was first created during the 1960s for military reasons. However, the Internet started to expand and became widely available for everyone in the 1990s. When users connect to the Internet, they are able to find a lot of information without driving to the library.

The library is a wonderful place for children to learn how to read. However, there are obsolete books and people are required to carry a library card. Also, if people lose their book, then they will be required to pay a fine to the library. Researching on the Internet provides current information every day and people don't have to borrow or pay fines to the library.

2. The second benefit for owning a computer is sending and receiving electronic mail. E-mail services are being paid by banner and sponsored advertising. Therefore, people will be able to send and receive messages for free. Also, e-mail provides fast and speedy service without waiting for the postman.

While the postman is great for receiving large packages, the price for a stamp increases every year. Furthermore, depending on the location, people will have to wait for a reply. By using e-mail, people will be able to receive replies within minutes or the next day at the latest.

3. The third benefit for owning a computer is making new friends. The Internet allows people to use social networking sites to reunite or make new friends. Without using a computer, people won't be able to know where their friends are located. Therefore, people have to rely on the big and bulky telephone book to find information. Also, international friendships are impossible due to currency rates and higher postal fees. As a result, people are unable to learn about different cultures and trends in an international area.

Learn more about computers with buying guides, reviews, Top 3 Desktops, features guides, fixes and how-to's and shop for all models and brands, of desktop computers, including, Dell, HP, Apple and more at cheap prices at: Dell Computers.

Article Source: http://EzineArticles.com/?expert=JR_Lang

Silhouette Photography

Silhouette photography is a wonderful way to convey drama, mystery, emotion and mood in a picture. A silhouette is defined as a view of an object or a scene consisting of the outline and a featureless interior, with the silhouetted object usually being black. Pictures like these often don’t convey a clear story, and leave part of the image up to the imagination of the viewer.

The key to taking a silhouette picture would be to: choose a strong subject with a defined and recognizable shape; turn off your flash to have as little light on the front of your subject as possible; get the light right by having more light shining from the background than the foreground; frame your image so that the brightest light source is behind your subject; and make sure the silhouette shapes are distinct and uncluttered by making subjects recognizable and keeping multiple subjects separate.

10 Principles For Readable Web Typography

Readability is one of the more important aspects of Web design usability. Readable text affects how users process the information in the content. Poor readability scares readers away from the content. On the other hand, done correctly, readability allows users to efficiently read and take in the information in the text. You want users to be able to read your content and absorb it easily.

In this post, we’ll explain some Web typography terms and how they play into readability; we’ll present numerous tips to help improve the readability of your content; and we’ll showcase very readable websites, layouts and articles.

The Terms, And What Each Means For Readability

There are many factors that play into the readability of text. There are also a number of terms, all very important. Here are a few of the more common Web typography terms and an explanation of how each term affects readability.

Hierarchy
Every typographic layout needs the essential element of hierarchy. Hierarchy defines how to read through content. It shows the user were to start reading and where to read through. It differentiates headers from body text. Although colors of text boxes can be used to contrast headers and body text, hierarchy refers to the difference in size between these elements. Hierarchy plays a huge part in how scannable a layout is. It is an important technique that needs to be mastered to achieve readable Web typography.

Contrast
Contrast is the core factor in whether or not text is easy to read. Good contrasts will make text easy on the eyes, easy to scan quickly, and overall more readable. On the other hand, poor contrast will force the user to squint and make reading the body text almost painful, not to mention a lot slower.

As shown in the following illustration, black on white is very readable. Black on white is obviously the standard contrast colors, and to achieve readable content it is good to stay in the range of black-on-white contrast.

This one, however, pink on blue, is nearly impossible to read. This example my be a little extreme, but it shows how such an awful contrast can have a major impact on the text. You probably won’t see websites using such poor contrast, but it still shows why you need to be very smart about it.

Line Height
Line height is a very common term meaning the space between individual lines of text. Line height is another factor in the readability of body text and even headers. Sufficient line height is especially important in Web design because it makes the text ultimately more scannable. Line height that is too short will cause users to squint while reading. If it is too large, the text will seem like separate bodies instead of grouped together as one.

Letter Spacing
Like line height, letter spacing affects readability in Web typography. Letter spacing is, as the name suggests, the space between each letter in words. In print layout, negative letter spacing is a common technique to add a more fun feel to the layout, but it should never be used in body text. In any text, letter spacing is an obvious factor in legibility.

Line Length
Line length is often overlooked in Web typography but should not be. Line length is, of course, the number of words per line. A good line length is one that allows the reader’s eyes to flow from the end of one line to the beginning of the next very easily and naturally.

The Keys to Readable Typography

Achieving readability is relatively easy; all it takes is to follow a few key practices. A readable Web page can go a long way with your users, and readability has a huge impact on their experience. Designing for the Web is all about making the user’s experience as pleasant as possible. Here are 9 tips that will help you work towards readability.

1. User-Friendly Headers
Headers are a key element in typography, Web and print alike. As mentioned, they are part of the text hierarchy and a major factor in scannable content.

First off, header size is just as important as the size of the body text. Going too big with the header with a large amount of content can throw the user off balance when reading and cause them to lose their spot. It will ultimately ruin the flow of the content and be a distraction. Headers that are too small will ruin the hierarchy of the article, too. If the header is too small, it will not draw the user’s attention as it should.

Next, it is important to provide ample space between the header and body text.

2. Scannable Text
I have already mentioned “scannable” text many times, and you have surely heard it elsewhere. Scannable text goes hand in hand with readable text. Making copy scannable consists of good use of headers, hierarchy and focus points to guide the user through the content.

So, what makes copy scannable? Well, there are many factors, most of which have already been mentioned. Header size and position, body text size, text line height, text contrast and the way focus points are differentiated all impact how scannable copy is.

Focus points are certain elements or objects within the layout that attract, or are supposed to attract, the user’s attention. This could be a header, a graphical element, a button, etc.

3. White Space
In content-heavy layouts, spacing contributes to the readability of content. White space helps to offset large amounts of text and helps the user’s eyes flow through the text. It also provides separation between elements in the layout, including graphics and text.

In the example below, white space and only white space is used to separate text elements. The layout is very clean and efficient. The user’s eyes flow from text element to text element with ease, because of the large amounts of white space.

4. Consistency
Consistency is often regarded as an important technique for usability, but it also applies to readability. Consistency in the hierarchy is important to a user-friendly layout. This means that all headers of the same importance in the hierarchy should be the same size, color and font. For example, all headers in an article should look identical. Why? This consistency provides users with a familiar focus point when they are scanning, and it helps to organize the content.

5. Density of Text
Density of text refers to the amount of words you place in one area. Density of content has a major impact on your content’s readability. Density is affected by spacing options such as line height, letter spacing and text size. If you find a balance between all of these so that the content is neither too compact nor too widely spaced, you will have perfect density that is both readable and scannable.

6. Emphasis of Important Elements
Another key factor is emphasis of certain elements within the body content. This includes highlighting links, bolding important text and showing quotes. As mentioned, focus points are essential in Web typography. By emphasizing these objects, you provide focus points for the user. These points and objects help break up monotonous text.

Scannable text is extremely important. By providing these focus points,, you make the body text extremely scannable. Bolding key lines of text immediately attracts the user’s eye and is therefore a very important element in presenting important information.

Pictured below is an article from UXBooth. This article uses bolding and italics to point out important information in the article. This is a very readable article and very easy article to scan for information.

7. Organization of Information
Believe it or not, the way you organize information in an article can strengthen readability. Users are guided with ease through content that is properly organized because information is easier to find. This veers into issues beyond the scope of this article but is still very important.

8. Clean Graphical Implementation
Every text body needs some sort of visual support, be it an image, icon, graph or illustration. Placing the graphic in the article can be challenging. Sufficient space is needed between the graphic and text.

If the graphical element is an image, then a clean border is a good idea for providing a clean separation from the text. Borders can help guide the user’s eyes and are good for adding style to content. It is important, however, to keep borders in content simple. They should have a subtle color palette and shouldn’t be too large.

In the case of graphical elements such as icons and illustrations, space is the only separator that should be used. The content should move cleanly around the graphic without disrupting the text.

9. Use of Separators
Separators are a simple and easy way to divide text into sections in a clean and organized manner. They can be used to divide hierarchy elements, such as headers and body text. They can also be used to divide content into sections.

The simplest form of divider is a single line. These are most often used to divide hierarchy elements and are very useful for making subtle divisions that still play a big role in readability.

Another common way to divide content is to use boxes. Text boxes are excellent for separating unrelated content on a single page. They help move the user’s eyes through a complex layout. Below is an example of this on Pixelmator’s website. It uses boxes to separate content in a clean way. Notice how the boxes are defined by their background instead of a border.

10. Good Margins
You hear people say that you should use white space, but why? White space actually helps draw the user’s eye to the text. The blank area (white space) forces the eye to focus on the text. So white space will influence the flow and readability of content. Margins are one of the best white space elements and support text elements well. Margins on either side will force the user’s eye to focus inward on the core content of the article.

Margins also support the article in another way. They help separate content from the rest of the design and layout. Text shouldn’t bleed into other layout elements, especially if it is a long article. Margins help define the article and its separation.

In the grid-based layout below, margins and only margins are used to set apart bodies of text. The result is a clean, clear and concise page.

article source: http://www.smashingmagazine.com/2009/03/18/10-principles-for-readable-web-typography/