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Computer Program
A computer program is a sequence of instructions written to perform a specified task for a computer. A computer requires programs to function, typically executing the program's instructions in a central processor. A computer program consists of many instructions that tell a computer what to do.
The are two types of computer programs or software- system soft ware and application software. System soft ware is for the proper functioning of computer and application soft ware is for different user applications.
programming languages
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.
Languages are mainly classified into low-level languages and high level languages. Low-level languages are closer to the language used by a computer, while high-level languages are closer to human languages.
There are many programming languages -- C, C++, Pascal, BASIC, FORTRAN, Java, Visal Basic, COBOL, and LISP are some high level languages. One can also write programs in low-level languages called assembly languages, although this is more difficult. Every program must be translated into a machine language that the computer can understand. This translation is performed by compilers, interpreters, and assemblers.
