Evolution of Programming Languages

First Generation: Machine Language

  • Machine language is the foundational programming language and the only language directly understood by computer hardware.
  • All data, operations, and instructions in machine language are stored, processed, and manipulated strictly in binary digits, consisting of 00 or 11.

Second Generation: Assembly Language

  • Assembly language instructions consist of meaningful, English-like abbreviations known as mnemonics.
  • Source code written in assembly language cannot be executed directly by the processor; it is translated into machine language by an assembler.

Third Generation: High-Level Languages

  • High-level languages feature instructions that are easy for humans to read and understand because they incorporate English-like statements.
  • Programs written in high-level languages are translated into machine language by either a compiler or an interpreter.
  • Documented examples of third-generation high-level languages include:
    • BASIC
    • Pascal
    • C
    • C++
    • Java
    • COBOL
    • FORTRAN

Fourth Generation: Very High-Level Languages

  • Very high-level languages are much more user-oriented than earlier paradigms.
  • They allow developers to build programs using fewer total commands compared with traditional procedural languages.
  • Documented examples of fourth-generation languages include:
    • SQL
    • NOMAD

Fifth Generation: Natural Language and Artificial Intelligence

  • Fifth-generation languages use human language to establish a more natural connection between people and computers.
  • This generation of programming languages is closely tied to the field of Artificial Intelligence (AI).
  • Documented examples include:
    • ICAD
    • Prolog