Wap and the Golden Age of Wireless

11/11/2009

A golden age of wireless is coming ... really! Despite the proliferation of cell phones and PDAs, very few handheld devices are currently being used to access the Internet and fewer still are used as a conduit to access Information Management Systems.

Today's wireless landscape is still nascent - standards are far from being established and competing systems are in a battle for mind and market share. And the battlefield is littered with the blooded bodies of yesterday's heroes.
I have been designing websites since 1996. In the beginning, it was easy. Someone called me with a project, they sent me the content for their website, which I would then upload to Microsoft Frontpage or a text editor, insert some HTML tags for formatting and some graphics to make the site colorful, and the job was finished.

The wireless revolution changed everything. Almost every electronic device now comes equipped with access to the web and email. Palm tops, laptops, cell phones, even computer screens installed in automobiles are now connected to the internet. The web browsers and operating systems installed on these wireless devices are often very different from what is installed on an ordinary desktop PC.

Many elements of the HTML programming language are not compatible with some of these wireless platforms. As a result, web design has completely changed. Cross-platform programming languages and specifications have been created so that websites can be viewed on any PC or wireless gadget.

Now you have a basic understanding of how and why the program has changed, you are briefly introduced in this article, WAP (wireless application protocol) to be prepared. WAP is an open international standard applications, the use of wireless communications. Its main application is to enable mobile phone or PDA to the Internet.

Before we begin to discuss Wireless Application Protocol, you should first know a little bit about a language called XML. It is a language that enables programmers to define data without telling the web browser how to display it, because XML files are simple text files. As a result, XML data can be displayed on any web browser. This is significant, because as we have already established, wireless web browsers have a hard time with HTML. XML solves this dilemma by putting data in a format that be displayed across all platforms.

WAP browser, the browser running on wireless devices, such as mobile phones. WAP protocol to understand WML (Wireless Markup Language), which is written in XML. In addition to XML, WML using some JavaScript, which is called the reference manual. However, JavaScript coding does not actually directly in WML page, it is to use the script URL, must be compiled into byte code on the server before the JavaScript can be run in the browser's wireless reference.

Wireless markup language uses tags, like HTML. However, the tags are case sensitive. The most important day, which is used, the card tag. WAP pages are known as decks, and they consist of a series of cards that between the opening and closing tags of each card containing sandwich. The maps within the document are then connected.

When a wireless web browser prepares to present the contents of a web page to the user, it downloads all of the cards in the deck at the beginning when the page first loads, and then is able to display the web page and everything in it without making any additional visits to the server.

In the code, there are generally two main types of tasks and requirements to go to. His mission led to switch to a new label within a deck of cards. The task ahead marker has led to action by switching to the previous access card. The other two types of tasks, it is worth mentioning that the refresh task, which will refresh the screen you are using any refresh, if the variable appears on the screen, and air operations missions, desist from any further action being implemented variables.

There are many other nifty tasks and elements that are used in WML such as the timer element. An example of the timer element in action would be to cause a message that is generated by a task in one of the cards to appear on the screen for 3 seconds before disappearing and moving on to the next card in the deck.

If you make a life as a web designer, you must learn in order to create WML pages for WAP-enabled browser. If you're not on a website so that it can be displayed on a wireless computer program, then your customers will be very unhappy. Wireless Internet use is constantly increasing. Not the creation of Web sites that can actually be displayed across all platforms is tantamount to career suicide.

If you are not familiar with Wireless Markup Language, I recommend that you enroll in some courses on a local computer programming institute, or buy some tutorials online. The syntax for the WML language is not too complicated, so if you already have extensive web design experience, learning the language should be relatively easy.

Posted in: javascript tutorial| Tags: Internet XML Application language web wireless protocol html browser wap

Ensuring Security of Wireless Networks

04/30/2009

Nowadays, implementation of wireless networks is very common. There are very less clutters in a wireless network, so it is a convenient way of network implementation and management. The troubleshooting of wireless network is easier than wired networks, so people prefer having wireless networks at workplace as well as at home.

However, wireless networks are more vulnerable to security flaws along with the convenience and easy approach of implementation. Even a person with less IT knowledge can easily access an unsecured wireless network and use unethically. Therefore, it is very important to restrict unauthorized access of wireless networks available at home or at your workplace. There are some standard security measures of securing your wireless networks from unauthorized access. In order to secure your wireless network, you can adopt following actions:

Restrict Wireless Network Broadcasting
The default setting of your Wi-Fi router allows automatic network broadcasting so that devices with wireless access feature can detect the wireless networks available in range. Choosing this default setting makes your wireless network open to everybody. To restrict automatic wireless network discovery you can disable this feature. Go through your wireless router manual to learn how to disable this feature.

Enable Data Encryption
Data Encryption is a well-accepted protocol to secure wireless networks. Nowadays, almost every Wi-Fi router or access points come with WEP (Wired Equivalent Privacy) or WPA (Wi-Fi protected access) encryption schemes. By enabling any of these two encryption schemes, you can restrict the access of your Wi-Fi network.

Choosing Strong Network Password
While enabling data encryption, you are required to set a password to allow access to your wireless network. Choosing a strong password is very important to achieve required level of security. An ideal password is combination of alphanumeric keys and comprise of several characters. Avoid using your name, Date of Birth, or other common things as a password for your wireless network.

Activating Firewall
All wireless access points come with an in-built firewall to stop unauthorized incoming and outgoing connections through your wireless network. Learn how to use and customize this firewall for maximum level of wireless network security.

By following above instructions, you can secure wireless networks at your home or at workplace and enjoy the benefits of going wireless without any worries.

Posted in: Software| Tags: Security Wireless Networks Protection Network Feature Access password router choosing wireless implementation encryption

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