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             \author[1]{Poli Venkata Subba  Reddy}

             \author[2]{Srivibha  Vadravu}

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\date{\small \em Received: 10 June 2021 Accepted: 5 July 2021 Published: 15 July 2021}

\maketitle


\begin{abstract}
        


Green computing or clean computing is necessary for Software Engineering. Perl and Python are important programming languages for green computing. Perl is regular language. Perl is mainly used for server-side programming because it is a regular language. It a portable and green programming language. It can be used as object-oriented (OO) or non objectoriented (Non-O-O) programming language. Python is preprocessor. It is a portable language for software engineering. It has an import feature for Green computing.

\end{abstract}


\keywords{green computing, regular expressions objectoriented, perl, preprocessor, python}

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\let\tabcellsep& 	 	 		 \par
reen Computing or Clean Computing is necessary to solve different types of problem solving. The Programming is needed portability of the code, and less computation time. There are different techniques methods are used for Green Computing like recursion, parallelism, regular expression and Object-Oriented. The recursion is the calling function itself. Parallelism is computing the number of tasks at a time. The regular expression is simplifies the code. The Object-Oriented shall made program is independent. 
\section[{II.}]{II.} 
\section[{Green Computing Methods}]{Green Computing Methods}\par
Programming is the main component for problem solution. The Green programming has some of the main features.  
\section[{Portability}]{Portability} 
\section[{c) Coding}]{c) Coding}\par
The Programming Languages fall under different paradigms Imperative, Functional, Logical, and Object-Oriented and regular it is difficult to learn all the programming languages. It easy to learn programming languages through common principles like iteration, recursion, control statements, functions, functions, subroutines, Object-oriented, etc. All principles and techniques are not available in single programming language. The selected Programming Languages are discussed for Green Computing.\par
Programming languages are designed based on Automata. Context-Free Language is the recursively representation of Finite Automata.\par
For green computing, Recursive Algorithms and Parallel algorithms are used until recently. Programming languages are playing a main role.\par
We consider Perl and Python for green computing. Perl is the regular language. It simplifies the programming, and it reduces time.\par
Python is the preprocessing language. It simplifies the with the import feature, it simplify the code. 
\section[{III.}]{III.} 
\section[{Component Technology}]{Component Technology}\par
All components are specialized, independently deployed and extendable for the product. These components are also extendable to multi versions of the components. The following are the characteristics of the components.\par
The components have an externally accessible view.\par
The semantics such as business rules and regulations are defined for the composition of components.\par
As Component software extended, the components are extendable.\par
The component must be relocate and replace a component for other implantations or the development of new software system.\par
The semantic primitives must be extendable to new components.\par
The composition of components is tightly coupled.\par
The components are substituted and integrated into the other systems. Sometimes this maybe referred to as off-the-components.   
\section[{b) Component Implementation}]{b) Component Implementation}\par
The component model is translated into component ware with tools for automation and management of components and interfaces. Interface to understand system architecture with the interface specifications that implement, reuse, and replacement of components. They are two types of component ware implementation for products.\par
Self-development in which component were developed from the scratch.\par
Off-the-self components in which component ware developed by black box assembling commercially available components and such components are documented, assembled and adapted.\par
The following are the characteristics of the implementation enterprise model. The components of the product may represent entire system Generosity: It is stepwise instantiation and controlled processes that use specifications, inheritance, relationships and contexts.\par
Domain system: It represents a particular area of components.\par
Domain object: It represents a particular process of components.\par
Semantic primitives: These are rules and kinds of relationships between objects.\par
These domain concepts are used to compose domain components of individual components.\par
IV. 
\section[{Perl Programming}]{Perl Programming}\par
The Programming Languages fall under different paradigms Imperative, Functional, Logical, and Object-Oriented and Regular. It is difficult to learn all the programming languages. It made easy to learn programming languages through common principles like iteration, recursion, control statements, functions, functions, subroutines, Object-oriented etc. All principles and techniques are not available in single programming language. The selected Programming Languages are discussed for Green Computing.\par
The Programming Languages are constructed mainly based on Finite Automata (FA) and Regular (RE).\par
The Formal Languages (FL) are simple representation of Context-Free Language) CFL). The CFL is recursion of FA. For instance, \$n=<STDIN>; \$factorial=fact(\$n); print "\$factorial\textbackslash n";  
\section[{Green Computing Technology}]{Green Computing Technology}\par
Green computing technology mainly has two criterions fundamentals of computer science and nature of computer science. 
\section[{a) Fundamentals of Computer Science}]{a) Fundamentals of Computer Science}\par
Fundamentals of computer science may be defined as  
\section[{Conclusion}]{Conclusion}\par
Perl and Python are best for Green Computing or clean computing. Perl is regular language and powerful at sever side programming. Python is preprocessor and it is portable with import feature. We try to discuss m Perl and Python programming languages for green computing.\begin{figure}[htbp]
\noindent\textbf{}\includegraphics[]{image-2.png}
\caption{\label{fig_0}}\end{figure}
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\end{document}
