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Forum Topic : What is Programming?

Submitted by Krithi on 23/06/2009 - 10:55 PM

Programming is the art and science of translating a set of ideas into a program (a list of instructions that a computer can follow). The person writing a program is known as a programmer (also a coder).

In other words, low level programming languages represent the instructions in a manner that resembles more closely the way the computer actually works. High level languages do resemble more the way the human mind works. Each type is a good fit depending on the particular case.

After a programmer has finished writing the program, it must be executed. Traditionally, some languages (like Basic) are interpreted, while others (like C) are compiled prior to execution. Interpreted languages are executed "on the fly" at run time, while compiled languages have a separate compilation step that must be completed prior to running. Compilers are able to make certain optimizations that are unavailable to interpreters.

The program may fail to compile or execute due to syntax errors. If the program runs, the programmer must then verify that the program is working as they intended it to. When things don't go as the programmer intended, the error is said to be a bug. To eliminate bugs, the programmer goes through a process called debugging, where he tries to isolate and fix the source of the problem.

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	Reply
How does the computer executes programming languag
Submitted by Sachin on 07/07/2009 - 11:22 PM
Hi Kirthi, Just tell me how will the computer understand and execute the programming language?

	Reply
About execution of Programming Language
Submitted by Krithi on 07/07/2009 - 11:30 PM
Regardless of what language you use, you eventually need to convert your program into machine language so that the computer can understand it. There are two ways to do this : Compile the program: Compiler translates high-level instructions directly into machine language. Interpret the program: An interpreter translates high-level instructions into an intermediate form, which it then executes.

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