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WHY DO WE NEED TO LEARN PROGRAMMING LANGUAGE?

“PROGRAMMING ISN’T ABOUT WHAT YOU KNOW; IT’S ABOUT WHAT YOU CAN FIGURE OUT.”

A Programming language is any set of rules that converts strings or graphical program elements in the case of visual programming languages to various kinds of machine code output.
Programming languages are one kind of computer language and are used in computer programming to implement algorithms. It is a notation for writing programs which are specifications of a computation or algorithm. Some authors restrict the term “programming language” to those languages that can express all possible algorithms.

Traits often considered important for what constitutes a programming language include:
  • Function and target

A computer programming language is a language used to write computer programs which involves a computer performing some kind of computation and possibly control external devices such as printers, robots and so on. It is generally accepted that a complete specification for a programming language includes a description, possibly idealized, of a machine or processor for that language. Programming languages differ from natural languages as natural languages are only used for interaction between people, while programming languages also allow humans to communicate instructions to machines.
  • Abstractions

Programming languages usually contain abstractions for defining and manipulating data structures or controlling the flow of execution. The practical necessity that a programming language support adequate abstraction is expressed by the abstraction principle.
  • Expressive power

The theory of computation classifies languages by the computations they are capable of expressing.
Markup languages like HTML, XML which define structured data are not usually considered programming languages. Programming languages may however, share the syntax with markup languages if a computational semantics is defined.
  • Ease of program verification

The reusability of program written in a language is always a central concern. A program is checked by various techniques.
Simplicity of semantic and syntactic structure is a primary aspect that tends to simplify program verification.
  • Programming Environment

An appropriate programming environment adds an extra utility and make language to be implemented easily like -

The availability of – Reliable- Efficient – well documentation
Speeding up creation and testing by – Special Editors – testing packages
Facility- Maintaining and Modifying – Multi version of program software product.

Each programming language has a unique set of keywords along with a special syntax to organize the software’s instructions.

There are low-level and high-level programming languages wh