วันจันทร์ที่ 4 เมษายน พ.ศ. 2554

A classification of computer languages

1. 1st generation : Machine language : machine-dependent language

2. 2nd generation : Assembler language, using mnemonics to present the instructions to be translated later into machine language by an assembly program.

3. 3rd generation : Procedural languages, also known as high-level languages (HLL), such as Pascal, FORTRAN, Algol, COBOL, PL/I, Basic, and C. The coded program, called a source program, has to be translated through a compilation step.

4. 4th generation, also known as 4GL : Non-procedural languages, used for predefined functions in applications for databases, report generators, queries, such as RPG, CSP, QMF.

5. Visual Programming languages that use a mouse and icons, such as VisualBasic and VisualC++.

6. HyperText Markup Language, used for writing of World Wide Web documents.

7. Object-oriented language, OO technology, such as Smalltalk, Java, and C++.

8. Other languages, for example 3D applications.

ref : intro to new mainframe book

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