Question

Which of the following languages is an example of fourth generation language in computer programming?
1. SQL
2. ALGOL
3. Pascal
4. SNOBOL

Answer 1

Correct Answer - Option 1 : SQL

The correct answer is SQL.

• Computer language is a formal language used in communication with a computer.
• In a Programming Language, a formal language is designed to communicate instructions to a machine, particularly a computer.
• There are five generations of Programming languages.
  • First Generation Languages : 
    • These are low-level languages like machine language. 
  • Second Generation Languages : 
    • These are low-level assembly languages used in kernels and hardware drives. 
  • Third Generation Languages : 
    • These are high-level languages like C, C++, Java, Visual Basic, and JavaScript. 
  • Fourth Generation Languages :
    • These are languages that consist of statements that are similar to statements in the human language.
      • These are used mainly in database programming and scripting.
      • Examples of these languages include Perl, Python, Ruby, SQL, MatLab.
    • SQL (structured query language) is a language for specifying the organization of databases (collections of records).
      • Databases organized with SQL are called relational because SQL provides the ability to query a database for information that falls in a given relation.

• ​Fifth Generation Languages : 
  • These are the programming languages that have visual tools to develop a program.
    • Examples of fifth-generation languages include Mercury, OPS5, and Prolog. 
• The first two generations are called low-level languages.
• The next three generations are called high-level languages. 
• Pascal is a procedural programming language that supports structured programming and data structures to encourage good programming practices.
  • Pascal was originally developed in 1970 by Niklaus Wirth and is named after the famous French mathematician Blaise Pascal.
• ALGOL is an acronym that stands for ALGOrithmic Language.
  • It is a computer language designed specifically for calculation.
    • It was developed in the late 1950s by an international committee and was meant to be a universal computing tool.