3. What is programming language ?

Program is a set of commands ( or instructions ) through which we can perform a specific task . A programming language is a language which helps us to write a program . For example , BASIC , C , C++ , Python , JAVA , DOT NET , etc. Computer programming language can be classified as ,
A. System Programming Language : A programming language that is used to write system software .
B. Application Programming Language : A programming language that is used to write application software . It can be further classified as ,
High Level Language : It is a programming language that permits a programmer to write programs that are more or less independent of a specific computer . They are considered as high level because they are closer to human language and further from machine language . For example , Pascal , Basic , C , C++ , JAVA .
Low Level Language : It is a programming language that permits very low abstraction from computer's instruction architecture (CIA) . They are closer to the native language of a computer , making them harder for programmers to understand . For example Low level languages are very fast and memory efficient . For example : Assembly Code , Machine Code .

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