Wi-Fi Explained (Part 1)

Posted on adminPosted in computer, gadget, internet, technology

About Wi-Fi

Wi-Fi is known as Wireless Fidelity. Wi-Fi allows network connectivity through radio signals without the need for wires. "Wi-Fi Alliance" suggesting the term Wi-Fi. Wi-Fi term is also used as a synonym for any type of 802.11 networks.

About Radio Waves

Radio waves are the longest wavelength waves in the electromagnetic spectrum. The length ranges from the size of a football field to the size of a volley ball. Radio waves carry signals to your radio, TV, mobile, etc.

Access Point Defined

Access Point is the configured node on wireless local area network (WLAN). Access points act as a central receiver and transmitter of WLAN radio signals. Access points are dedicated hardware devices, which consist of antenna, radio transmitter, and built-in network adapter.

Hotspots Explained

Hotspot is an area serviced by an access point which allows Wi-Fi clients to connect to a network. Hotspots are those areas where Wi-Fi is provided on demand. Since Wi-Fi has gained acceptance in many businesses, homes, etc, and nowdays most of the laptops and electronic devices are having inbuilt Wi-Fi access devices; Wi-Fi can act as an alternative to a wired LAN. Places like airports, star hotels, cafés, etc, are the locations where Wi-Fi is available on demand. The places where Wi-Fi is available on demand or free are also known as hotspots.

Wi-Fi & Hotspots

The area covered by one or more interconnected Access Points is called a "Hotspot". The space range Hotspots can cover variants from as little as a single room with wireless-opaque walls or as much as many square miles covered by overlapping access points. Wi-Fi can also be used to create a mesh network. Wi-Fi allows connectivity in peer-to-peer mode, which enables devices to connect directly with each other. This connection mode is useful in consumer gaming and electronics applications.

Certification Issue

When Wi-Fi technology was first commercialized, there were many problems regarding the interaction between different Wi-Fi gadgets. Then a community called "Wi-Fi Alliance" began to solve this issue, also addressed the needs of the end user, and allowed the technology to mature. The Alliance's "Wi-Fi Certified" stamp on Wi-Fi enabled gadgets assures consumers that the stamped products are interoperable amongst each other. Wi-Fi also enables wireless voice applications (VoWLAN or WVOIP). "Wi-Fi Certified" products interact among each other although their manufacturers are different. A "Wi-Fi" certified product can use any brand of access point with any other point of client hardware which is also "Wi-Fi" certified. Any "Wi-Fi" product will work with any non "Wi-Fi" certified product, if the latter uses the same radio frequency as the former.

SSID & its Purpose

Expansion of SSID is Service Set IDentifier. It is a code that attaches to all packages on a wireless network; only to identify each packet as part of that network. The code consists of case-sensitive alphanumeric characters. Wireless devices that attempt to communicate with each other must share the same SSID. The process of connecting a device to a specific wireless network through …

Learn Spanish Downloads – Learn Conversational Spanish in 2 Months

Posted on adminPosted in internet, programming

Spanish has become one of the most popular languages besides French and English. Everywhere you go, there are people speaking Spanish, there are at least 2 TV channels for Spanish speaking programming. Public transportation in many cities have their notices in English and Spanish.

That’s why a great way to become fluent in Spanish is using the lessons to learn Spanish downloads that cover grammar, vocabulary and most importantly, conversation and pronunciation.

At the end of the day, what most people are interested in is being able to carry a conversation fluently and without having to carry a dictionary under their arm.

Once you have decided to learn Spanish, you are faced with three choices. You can go to an established school, you can hire a private tutor or you can download a course from the internet.

Each choice has an advantage and in the end, it all depends on what your needs are and how disciplined are you to learn on your own. Going to a school requires of time and money. If you are busy with work or other activities this might not be the best alternative.

Hiring a private tutor will be good for those with a good size budget and the time to sit down with the tutor at the same time every time.

If you choose to follow learn Spanish downloads and its components, you can do so at your own pace and the time that is convenient for you. These downloads will included grammar and vocabulary and audio and video lessons for you to follow along and make sure that you are learning the correct pronunciation for all the phrases.…

SEO Canonicalisation Issues – How to Spot Them

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The subject of canonicalization is literal too big a topic to cover in just one article and as such I will avoid the topic of parameters, sessions ID's and other whole scale duplicate content issues that each would require an article on their own and instead I will focus on some less obvious canonicalization issues that sometimes are tougher to spot.

Canonicalisation is basically the process of determining an authoritative page where two pages exist on two different URLs. With some form of canonicalization, these pages could both be indexed by a major search engine and end up competitiveness against each other for a given query that is targeted to each particular page. One example of a canonicalization issues is the trailing slash. Webmasters may opt to place a trailing slash at the end of their URLs, or this may be pre-determined by their particular CMS. However, this URL:

<a target = _new rel = nofollow href = https: //translate.googleusercontent.com/translate_c? depth = 1 & amp; hl = en & amp; ie = UTF8 & amp; prev = _t & amp; rurl = translate.google.com & amp; sl = en & amp; sp = nmt4 & amp; tl = en & amp; u = http: //www.example.com/& usg = ALkJrhgR4c9SeVEZ9zBFmDg8PtrbuNr7Yg> http://www.example.com </a> is different from this URL: <a target = _new rel = nofollow href = https: //translate.googleusercontent.com/translate_c? depth = 1 & amp; hl = en & amp; ie = UTF8 & amp; prev = _t & amp; rurl = translate.google.com & amp; sl = en & amp; sp = nmt4 & amp; tl = en & amp; u = http: //www.example.com/& usg = ALkJrhgR4c9SeVEZ9zBFmDg8PtrbuNr7Yg> http://www.example.com/ </a> – notice the subtle difference. There is a danger that both of these pages will be indexed, so posing a duplicate content issue.

Another duplicate content issue is that of the non-WWW version of a page competing against the WWW version of a page. Both versions of this URL can be indexed and thus all of the pages on your site could potentially be competitive against one another. Once a search engine crawler accesses your website through a non-WWW version of your URL it may continue to crawl your webpage following this pattern ie it may crawl every page on your site via the non-WWW versions of your URLs. Two further examples of canonicalisation problems include the index version of your webpage eg index.html or index.php, and the https: or secure pages on your website.

All of these issues require tailor solutions. In some instances you can merely set up a 301 redirect to redirect any authority contained in one page onto another. In some instances you can disallow certain pages (eg https) via robots.txt. In other instances, you may need to pursue a different strategy altogether eg the canonical tag or no index tag, or parameter handling via Google Webmaster Tools. …

How to Clean My Computer Registry to Make it Run Faster

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Your computer registry is the center of your computer's operation. Every program and software stores vital information in your registry that makes it able to run properly. Any information on changes made in your computer like installation and un-installation of software are recorded in the registry. Here, you need to take good care of your computer registry and keep it healthy by eliminating superfluous files. That leads us to a very common question: How to clean my computer registry in order to keep it free from junk files and improve my computer's performance?

As we have discussed earlier that your registry is the core database of your computer where every operation make its reference to files stored in this area; This further implicates that this area also contain redundant data which used to be a part of your previous files and programs but are now deleted or un-installed. Therefore, your computer is also filled with these junk files as you keep on using your computer.
In order to clean your registry to improve its performance, you have to delete all junk files as they are just slowing down the operation of your computer. Previously, people manually delete trash files. However, you should be highly skilled in computers in order to do this because you run the risk of accidentally deleting very important data necessary for other programs to run properly. Furthermore, this is also time-consuming as there are large files of junk you need to identify one by one and delete them.

Fortunately, there is software that automatically identifies all junk files in your computer and present them to you for further action to be done. You are given the option to delete them, modify these files, or repair them. Once you have selected your desired action, you registry is then cleaned out and your computer's performance improved.

This software is called Registry Cleaner; and this is the answer to your question on how to clean my computer registry to improve its performance. With a great registry cleaner, your computer could even perform back to its out-of-the-box performance level; just like brand new. …

Setting Up FTP in Dreamweaver

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Okay, you created a Web site and tested it, and you’re ready to upload it to the Web. It’s time to put the Dreamweaver publishing tools to work. If you’re using a commercial service provider, you most likely need the Dreamweaver FTP features, covered in detail in this task and the remaining tasks in this chapter. Note that you must complete the site-setup process, before you can configure the site for uploading. You also need the following information from your Web hosting service:

– The FTP host name

– The path to the Web directory (optional but useful)

– An FTP login or user name

– An FTP password

After you gather all your FTP information and complete the site setup, you’re ready to access the Dreamweaver publishing tools and prepare the program to upload your Web site. In this task, you set up Dreamweaver to connect to your server via FTP, a process you need to do only once for each site you work on. In the next task, you use Dreamweaver to upload pages to your server by using the connection you establish in this task.

Follow these steps:

1. Choose Site?Manage Sites to open the Manage Sites dialog box.Alternatively, you can choose Manage Sites from the bottom of the Site drop-down list in the Files Panel, as shown in this figure.

2. In the list of defined sites, select the site you want to publish and then click the Edit button.

3. Select the Advanced tab from the top of the Site Definition dialog box, and then select the Remote Info category from the left side.

4. Click the drop-down arrow to the right of the Access box, and then select the publishing option best suited to your Web server and development environment. If you’re using a commercial Web host (the most common option for small do-it-yourself sites), choose FTP. If you’re working at a university, a large company, or an organization that has its own Web servers, refer to the nearby sidebar, “The multiple Dreamweaver publishing options,” to understand your choices here, and check with your system administrator to find out which option is best for your system.

5. In the FTP Host text box, type the host name of your Web server. Directory text box, type the directory on the remote site in which documents visible to the public are stored. The information you enter in this field depends on your server. In some cases, you can leave the field blank if you log in directly to your site; in other cases, you use a different path, such as users/mysite/domain. Check with your service provider or site administrator to find out how your server is set up.

6. Enter your login name and password. Web services require a username and password to gain access to your Web server, to ensure that you’re the only person who can make changes to your Web site. If you select the Save check box, Dreamweaver stores the information on …

High Standard and Quality Website

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If you will cook a special food to a very special visitor, I know that you will make it the best menu ever. It will really be the food that your visitor will be filled and satisfied. Your food will sure be well prepared and well presented even without tasting it and your visitors will say, "Wow!"

Your website is like the special menu that your visitors online should say wow as well because of the sense and importance to them. Even in one look to your website should make them confirm that they found what they are looking for. Your site should be well prepared and presented too. Leave your old website and modify it to the very attractive and organized web page. First impression really keeps, so you need to make sure that your menu of food or your website is concise and complete, meaning filling and satisfing your visitors.

To make the best menu is not an easy task. You should have enough knowledge on ingredients and procedures to end up with your special food best. Likewise, you should know how to package your website and how it works in every search engines. Your expertise is very important and if you need more knowledge about making your site traffic creator or talk of the net, experts are ready to help you too. The looks of your website maybe attractive to visitors but always remember the quality and taste is the most important part of it. So always make first impression really lasts. …

Freshen Up For Google

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It has nothing to do with layout, design or images. Content in this article reflects only the text of the website's information. Google indexes the text content in websites in order to rank them in search results, but ignores layout, design, and images (except for the "Alt" text and captions of images).

While the website that you had designed for you last year still looks perfect to you, since then, many new competing web pages have appeared on search engines. Your content, while still perfectly good, is now no longer the latest in a search. So how can you fix that?

Adding new content

A useful way to get fresh content indexed is to add more web pages. Remember also that the quantity of information in a website is another of the many factors that search engine algorithms use to determine the relevancy of a website to a search.

Look through your current pages for bullet points that can be expanded into new pages. As the subjects have already been introduced in your website, they may be the easiest on which to provide more information.

Are there any new uses of your products or services that you can announce? These can be the basis of additional pages.

Is there any new customer feedback that you can publish? This not only adds to the content – it is useful information for prospective customers.

A "News" page is useful for summarizing new content. Have your products or services reached new markets? Are there any new products or services that you can announce?

Refreshing old content

There may be ways of rewriting existing web pages to show that they are fresh. Keep file names the same, but change titles, headings and text.

Add some words, sentences and / or paragraphs. Add something to make the text topical. Eg If you are selling surfboards, mention current surfing news.

Expand on some descriptions. But do not pad them out – not obviously anyway. Do not just rearrange the sentences.

How to write the new content

Once you decide on the pages that you will add, on the first night select a page and just type a list of the ideas you have for that page. On the second night, take each of the ideas on the list and type something about it. On the third night, edit what you have typed. Each time you take a fresh look at the text, after sleeping on it, you tend to improve it.

Use this procedure for each of the ideas listed, and for each new page. This works for most people. Only if you are a genius will write the perfect copy the first time. The rest of us ordinary people need to work at it.

When people tell me that they do not have the time or ability to write copy for their web pages, I remind them that they are good at running a business selling their products, so why not stick to that and …

Tips on Creating Search Engine Optimization (SEO) Friendly Web Pages

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What point is there in having a website that nobody sees? The largest source of free web traffic for most websites on the Internet comes from search engines like Google, Yahoo! and MSN etcetera. Therefore, if you design a search engine friendly or a site with search engine optimization in mind you are likely to rank higher in search engine results and grab more valuable free visitors for yourself.

The Big 3 search engines eg Google, Yahoo! and MSN use internet robots known as web crawlers or spiders to crawl and index websites which they can list within their organic search result pages. Most spiders follow links to a page then read the text content of the page and make a record of it in their own database … this allows the search engines to pull up the listing at any time as people search for it.

In order to make it as easy as possible for the search engines to index and crawl and index your site, the use of frames on your website should be avoided. Frames can often confuse search engine robots and many spiders have difficulty indexing pages created with the use of frames. They could even leave your site without crawling it any further if it is not search engine friendly enough. In addition, frames can make it difficult for users to add a bookmark a particular page on your website without using certain long and complicated scripts.

Do not put valuable text content inside flash movies or in images … remember search engine robots can only read the text on your website source code. Therefore if crucial text is presented in flash movies and or inside images rather than the readable textual form, your website's search engine rankings could have been affected dramatically.

Correct use of meta tags on each page is essential, especially correct use of titles and descriptions. This will allow search engine robots to understand straight away what your web pages are about and whether or not to index it. Correct use of meta tags helps to make the search engine robot's job easier so they may be encouraged to crawl your site more often.

Stop using old style HTML methods like tables and font tags to style your page. Instead use div tags and CSS or Cascading Style Sheets. This is because div tags and CSS are a more search engine friendly method and are also more efficient. With the use of div tags and CSS, you can eliminate old style HTML tags and your pages will be much lighter and faster to load.

Make sure that you always put the text you want to be found for on the body text of your page with your most important keywords near the top or beginning of your body text. For example, if your primary keyword is green widgets put the keyphrase green widgets in the first sentence of your body text and repeat the phrase a few more times throughout …

Removing Spyware Is Easy

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Removing spyware has now become much easier with the wide availability of much advanced anti spyware programs. Do you know that sometimes you are not aware but your Internet behavior is being watched by a third party. They know the kinds of websites you visit and what are the specific activities that you perform on the Internet. They are keeping an eye on all your Internet activities. If you are providing your personal and financial information on some websites, such as for online shopping or internet banking, some unscrupulous Internet bodies are even accessing the same. All this is possible with a spyware program that is secretly loaded on your computer while you surf Internet. Therefore, it is important for you to be alert always. You have to have an effective system on your computer, which could tell you if there is any malicious program running in the background on your computer. When it comes to removing spyware, programs like spyware killer play a very important role. They will help you maintain your online privacy.

Functions Of Spyware Killer

There are two functions of a spyware killer – detecting and removing spyware. When you surf the Internet and some malicious programs try to hit your computer, the anti-spyware programs will warn you regarding the same. Even if some spyware make their way to your computer, you just have to run a scan process using the anti-spyware program and in a very short time, they will be removing spyware from your computer. The regular use of these anti-spyware programs will always keep your computer clean and healthy.

Choosing The Best Spyware Eraser

There are certain things that you must keep in mind while you are choosing the perfect spyware cleaner for your computer. Before you perform the anti-spyware download, it is important for you to read extensively, spyware reviews on various available products. This is important because these days there are many fake anti-spyware software programs available on Internet. Such programs will not be removing spyware from your computer. Instead, they will attack your computer with loads of malicious programs. Therefore, be very careful and make sure that you download the anti-spyware programs offered by established and reputed companies.

Removing spyware from your computer will be much easier if you keep your Windows always up-to-date with all the latest features. Make sure that you have turned the option for auto-update on.…

How the Internet is Changing the Way We Communicate

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How the Internet is changing the English language and the ways we speak

As a linguist and an ex-English teacher, the evolution of language has always fascinated me. Since the 15th century, the English language has evolved under the influence of technology but I would argue that this has been more in terms of style than structural changes to the language. The first big change came in the 15th century with the use of printing presses which introduced new standardized grammar, spelling and punctuation styles. In the 19th century, telephonyrought in new patterns of dialogue as people could speak to each other at greater distances. Radio and TV broadcasting in the early 20th century introduced us to new styles and thought us sports commentators, chat shows and interviews. However, it is the internet that has had a massive change both in the way we speak and how we write English.

Who could have predicted that internet technology would have brought us so much diversity? For example, just think of the different technologies and the way we communicate in English using these technologies:

* the world wide web itself

* email

* chat rooms

* instant messaging

* the virtual worlds of games

* blogging

* twittering

* mobile phone texting

* social Networking

We do not speak or communicate in the same way when we are blogging as when we are texting and each technology has its own style of the English language. These different styles of communication have exploded and will continue to evolve and you can see it in all forms of online marketing or offline marketing materials

Whilst the internet has produced some new vocabulary or "internet slang", there are only a few hundred new English slang words in a language which has over one million words. So the 20th century slang of "groovy" and "funky" has given way to phrases like "lol" (laugh out loud), and "brb" (be right back) in the 21st century – but they are still relatively few.

So, although there are some new punctuation formats, eg emoticons, there have been no significant changes to grammar patterns or verb endings. The main change has been the style of language that we use when we communicate.

Lots of purists and people would like to preserve the correct way to speak English. However, no one can stop trends in style and slang from changing the way we communicate. Whether it is cave men's drawing on walls, writing in sand with a stick, or sending a "tweet" to the other side of the world, the English language is something that will never be permanent and will be constantly changed by technology. …