In computer science Computer science or computing science is the study of the theoretical foundations of information and computation, and of practical techniques for their implementation and application in computer systems. It is frequently described as the systematic study of algorithmic processes that create, describe and transform information. According to Peter J, an interpreter normally means a computer program Computer programs are instructions for a computer. A computer requires programs to function, typically executing the program's instructions in a central processor. The program has an executable form that the computer can use directly to execute the instructions. The same program in its human-readable source code form, from which executable that executes Execution in computer and software engineering is the process by which a computer or a virtual machine carries out the instructions of a computer program. The instructions in the program trigger sequences of simple actions on the executing machine. Those actions produce effects according to the semantics of the instructions in the program, i.e. performs, instructions written in a programming language A programming language is an artificial language designed to express computations that can be performed by a machine, particularly a computer. Programming languages can be used to create programs that control the behavior of a machine, to express algorithms precisely, or as a mode of human communication. An interpreter may be a program that either
- executes the source code In computer science, source code is any collection of statements or declarations written in some human-readable computer programming language. Source code is the mechanism most often used by programmers to specify the actions to be performed by a computer directly
- translates source code into some efficient intermediate representation (code) and immediately executes this
- explicitly executes stored precompiled code[1] made by a compiler which is part of the interpreter system
Perl Perl is a high-level, general-purpose, interpreted, dynamic programming language. Perl was originally developed by Larry Wall, a linguist working as a systems administrator for NASA, in 1987, as a general-purpose Unix scripting language to make report processing easier. Since then, it has undergone many changes and revisions and become widely, Python Python is a general-purpose high-level programming language. Its design philosophy emphasizes code readability. Python claims to "[combine] remarkable power with very clear syntax", and its standard library is large and comprehensive. Its use of indentation as block delimiters is unusual among popular programming languages, MATLAB MATLAB is a numerical computing environment and fourth generation programming language. Developed by The MathWorks, MATLAB allows matrix manipulation, plotting of functions and data, implementation of algorithms, creation of user interfaces, and interfacing with programs in other languages. Although it is numeric only, an optional toolbox uses the, and Ruby Ruby is a dynamic, reflective, general purpose object-oriented programming language that combines syntax inspired by Perl with Smalltalk-like features. Ruby originated in Japan during the mid-1990s and was initially developed and designed by Yukihiro "Matz" Matsumoto. It is based on Perl, Smalltalk, Eiffel, Ada, and Lisp are examples of type 2, while UCSD Pascal UCSD Pascal was a Pascal language system that ran on the UCSD p-System portable, highly machine-independent operating system. The University of California, San Diego Institute for Information Systems developed it in 1978 to provide students with a common operating system that could run on any of the then available microcomputers as well as campus and Java Java is a programming language originally developed by James Gosling at Sun Microsystems and released in 1995 as a core component of Sun Microsystems' Java platform. The language derives much of its syntax from C and C++ but has a simpler object model and fewer low-level facilities. Java applications are typically compiled to bytecode that can run are type 3: Source programs are compiled ahead of time and stored as machine independent code, which is then linked In computer science, a linker or link editor is a program that takes one or more objects generated by a compiler and combines them into a single executable program at run-time and executed by an interpreter and/or compiler (for JIT In computing, just-in-time compilation , also known as dynamic translation, is a technique for improving the runtime performance of a computer program. JIT builds upon two earlier ideas in run-time environments: bytecode compilation and dynamic compilation. It converts code at runtime prior to executing it natively, for example bytecode into systems). Some systems, such as Smalltalk Smalltalk is an object-oriented, dynamically typed, reflective programming language. Smalltalk was created as the language to underpin the "new world" of computing exemplified by "human–computer symbiosis." It was designed and created in part for educational use, more so for constructionist learning, at Xerox PARC by Alan Kay,, and others, may also combine 2 and 3.
While interpretation and compilation A compiler is a computer program that transforms source code written in a computer language (the source language) into another computer language (the target language, often having a binary form known as object code). The most common reason for wanting to transform source code is to create an executable program are the two principal means by which programming languages are implemented, these are not fully distinct categories, one of the reasons being that most interpreting systems also perform some translation work, just like compilers. The terms interpreted language In computer programming an interpreted language is a programming language whose programs are translated to machine code at the time of execution and it's implementation often takes the form of an interpreter. Theoretically, any language may be compiled or interpreted, so this designation is applied purely because of common implementation practice or compiled language A compiled language is a programming language whose implementations are typically compilers , and not interpreters (step-by-step executors of source code, where no translation takes place) merely mean that the canonical implementation of that language is an interpreter or a compiler; a high level language is basically an abstraction which is (ideally) independent of particular implementations.
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numerical computing Designed and implemented by Harry H Cheng it has been further developed and maintained by SoftIntegration Inc Ch is a C compatible language environment supporting all features in the ISO 1990 C standard C90 and is a superset of C interpreter with salient extensions Such new features as complex numbers variable length array VLA binary
