Characteristic Of Web Programming

FORMATS:   

COMMAND LINE INTERFACE ( CLI )
 ---  is a mechanism for interacting with a computer operating system or software by typing commands to perform specific tasks.

example : HTML, bash (Bourne-Again shell), and CHAIN

GRAPHICAL USER INTERFACE ( GUI )

--- is a type of user interface that allows users tointeract with electronic devices with images rather than text commands.

example: Visual Basic, JAXFront, and Jvider

PROTOCOLS:

Mozilla Firefox
--- is free open source web browser. You can browse website even you don't use www.
Internet Explorer
--- is a series of graphical web browsers.IE has been most widely used
web browser.You need to type the complete domain name when browsing at IE.
Google Chrome
--- is a web browser developed by Google that uses the WebKit layout engine and application framework.Google chrome is also a fast web browser.You can open another tab while browsing a web.


Opera
--- It is very customizable which means it can be accessed on your smart phone, computer, laptop. 

Power . HTML
--- is limited in its computational power. This is intentional in its design, as it prevents the execution of dangerous programs on the client machine. However, Web programmers, as they have become more sophisticated in their applications, have increasingly been hamstrung by these limits.

Performance. 
--- because of an HTML program's limited functionality, and the resulting shift of computational load to the server, certain types of applications perform poorly, especially in the context of clients connected to the Internet with rather low bandwidth dialup communications (<=28.8Kbps). 

Platform Independence 
--- given the diversity of operating systems and hardware platforms currently in use on the Web, a great efficiency results from only dealing with a single form of an application. The success of HTML has proven this, and Java has seconded it. The ability to deliver a platform-independent applicationis of great appeal to developers, who spend a large portion of their resources developing and maintaining versions of their products for the different hardware/software platform combinations. 

Safety 
--- viruses have proven that executing binary code acquired from an untrusted, or even moderately trusted, source is dangerous. Code that is downloaded or uploaded from random sites on the web should not be allowed to damage the user's local environment. Downloading binary code compiled from conventional languages is clearly unsafe, due to the power of the languages. Even if such languages were constrained to some ostensibly safe subset, there is no way to verify that only the safe subset was used or that the compiler used was trustworthy (after all, it is under someone else's control).

Conclusion:

I think perormance is the most needed characteristic of a web programming language. because browsing depends on the performance of the web programming language.

Web Programmning Language

PHP
-- is a widely-used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML. If you are new to PHP and want to get some idea of how it works, try the introductory tutorial.

AppleScript

-- is a scripting language created by Apple Inc. and built into Macintosh operating systems since System 7. The term "AppleScript" may refer to the scripting system itself, or to particular scripts that are written in the AppleScript language.

AppleScript is primarily an inter-application processing system, designed to exchange data between and control other applications in order to automate repetitive tasks.

Datalog 

-- is a query and rule language for deductive databases that syntactically is a subset of Prolog. Its origins date back to the beginning of logic programming, but it became prominent as a separate area around 1977 when Herve Gallaire and Jack Minker organized a workshop on logic and databases. David Maier is credited with coining the term Datalog.

Logic

-- is the formal systematic study of the principles of valid inference and correct reasoning. Logic is used in most intellectual activities, but is studied primarily in the disciplines of philosophy, mathematics, semantics, and computer science.

Bliss
-- is the name of a Windows bitmap image included with Microsoft Windows XP, produced from a photograph of a landscape in Sonoma County, California, southeast of Sonoma Valley near the site of the old Clover Stornetta Inc. Dairy. The image contains rolling green hills and a blue sky with stratocumulus and cirrus clouds. The image is used as the default computer wallpaper for the "Luna" theme of Windows XP.


EXAMPLE OF C++

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// my first program in C++ #include <iostream> using namespace std; int main () { cout << "Hello World!"; return 0; }

Hello World!

The first panel (in light blue) shows the source code for our first program. The second one (in light gray) shows the result of the program once compiled and executed. To the left, the grey numbers represent the line numbers - these are not part of the program, and are shown here merely for informational purposes.

The way to edit and compile a program depends on the compiler you are using. Depending on whether it has a Development Interface or not and on its version. Consult the compilers section and the manual or help included with your compiler if you have doubts on how to compile a C++ console program.

The previous program is the typical program that programmer apprentices write for the first time, and its result is the printing on screen of the "Hello World!" sentence. It is one of the simplest programs that can be written in C++, but it already contains the fundamental components that every C++ program has. We are going to look line by line at the code we have just written: