Taking a Look at CGI and Perl Scripts

The first versions of WWW ((what most people call “The Web”))) provide means for people around the world to exchange information between, to work together, to communicate, and to share documentation more efficiently. Tim Berners-Lee wrote the first browser (called WWW browser) and Web server in March 1991, allowing hypertext documents to be stored, fetched, and viewed. The Web can be seen as a tremendous document store where these documents (web pages) can be fetched by typing their address into a web browser. To do that, two im- portant techniques have been developed. First, a language called Hypertext Markup Languag (HTML) tells the computers how to display documents which contain texts, photos, sounds, visuals (video), and animation, interactive

•An explanation of the differences between client and server side scripting with examples of each. Consider the advantages and disadvantages

The common gateway interface (CGI) is a standard way for a Web server to pass a Web user's request to an application program and to receive data back to forward to the user. It is part of the Web's Hypertext Transfer Protocol (HTTP). A disadvantage of a CGI application (or "executable file," as it is sometimes called) is that each time it is run, it runs as a separate process with its own address space, resulting in extra instructions that have to be performed, especially if many instances of it are running on behalf of users The improper use of CGI scripts affords users a number of vulnerabilities in system security.

Initially, HTML coding is what makes web browsing on any web browser possible. Basically what web-browsers do is that they read certain codes or code languages. HTML or "Hypertext Markup Language" is one of the coding languages that web browsers read. The web browsers read and translate these codes, displaying and producing what we see on our computer monitors or any internet capable device. Hypertext Markup Language was invented by a man by the name of Tim Berners-Lee, he made this so he could use his coding language and have it be displayed on the World Wide Web. These coding languages were made to be used on the World Wide Web to provide data and information to scientist all around the world as well as to let these scientist collaborate together to pull information together. Although the word-wide-web had already been invented Sir Tim had to find a way to connect this information all together. When Sir Tim sent in "Information Management: A Proposal" for the essentials of the world-wide-web to CERN in Mach of 1989 in which he described a

$1.1 trillion in sales in 2011 were web-influenced. On a daily basis, people will continue to need websites for certain businesses or certain jobs so that means the web development market will continue to make money. Web development is the process of designing and developing a website from scratch or the ground up. It is the “back end” or “behind the scenes” of a website, such as programming. Web developers create programs and applications for the Internet or the World Wide Web and focus on how a website works and functions. They create custom codes to accommodate the unique needs of the client or clients, developing everything from the

Developing Web contents involves shaping and making many choices involving technical, aesthetic, and usability concerns. With the expanding technical options for communication on the World Wide Web, it is tempted to focus only on issues such as hypertext markup language (HTML) syntax, page layout, or the latest and flashiest technologies. However, there needs to be a broader approach in order to articulate the information content that is to be conveyed. There is also a need to pay attention to the characteristics and qualities of the Website as a medium for communication so that there are not merely duplicate practices intended for paper and other media.

Microsoft’s internet information services (IIS) is one such solution. This webs server is designed to run on Windows server platforms. Consequently, it integrates well with Microsoft’s online applications. It features an intuitive graphical user interface that simplifies its installation and use. However, the costs of installing new versions of this web server are high. In addition, its restriction to the Microsoft server OS platform inhibits system flexibility. An alternative to IIS is the Apache web server. This is an open sourced application that can be implemented on a wide variety of operating system platforms. Apache’s integration of a pearl and PHP engine facilitates easy integration with the application programming interface (Gunther, 2006). In addition, this web server is available for free. This makes it a cost effective alternative. Further, Apache’s event-driven architecture enables it to perform ideally even under heavy loads. However, Apache usage involves a relatively strenuous learning curve. The software’s complexity may present an obstacle to its use by new users. Another web server that can be adopted for use in this project is Nginx. This server is easy to use as well as stable. It is also based on an event driven architecture. This architecture makes it an efficient user of system resources even under heavy loads (Tanenbaum, 2001). Nginx’s ease of installation, configuration, and use make it a viable alternative for adoption in

Dynamic Content Creation (CGI): Utilizing all of the above components, the web content can reload without a complete page refresh for updated data received. It generates html for new text, hyperlinks and tables rows. It does not create any additional scripting.

Both JSP and PHP are web based languages. Both have Mail Sending, File upload, form handling, sessions in built not paralyse like asp classic that used to perform every 2nd function with help of 3rd party.

This is most likely why new web-oriented architecture (WOA) endeavours are seeing the light of day. Since they are littler, use Soothing abilities incorporated with HTTP, and can be empowered in existing web applications with minor changes.

In this report I will be researching and reporting on the key features of the World Wide Webs development and analysing the aspects of what made up the World Wide Web. The main subjects will be the WWW (World Wide Web), HTML5, CSS3/ CSS box model and JavaScript including document object model. I will be exploring these subjects’ core principles, purposes, features, techniques and latest developments to display and further my knowledge of these subjects and reinforce them with evidence.

The World Wide Web is established on numerous different technologies that make it possible for users to find and share data through the internet. For example there are Web browsers, HTTP (hypertext transfer protocol) and HTML (hypertext Markup language).

The last ten years have seen the release of a huge number of JavaScript frameworks. Designed and developed to aid in the rapid development of websites, web applications and other online software. Previously, to develop large applications that were secure, fully functional, cross browser applications would have taken a team of developers, working on bespoke front-end and backend systems. With the advancement of the web browser, along with the maturing of HTML5, CSS3, JavaScript and the addition of frameworks the possibilities for complex web applications is huge. It is now possible to substitute desktop applications with apps running in the browser. With the addition of web frameworks, developers can worry less about the complexities

Techniques that can be used on web pages to help a user access and use a page.

Web servers are characterized mainly by low CPU utilization with spikes during peak periods, with disk performance as a consideration if the website is delivering dynamic content (Advanced Micro Devices, 2008). Traditional web servers only delivered static HTML pages, or pages that had no interactive or data-input elements – merely a send and read operation. Dynamic websites may utilize forms and databases, which would be an additional consideration to a high traffic website.