Programming Languages

The generations of programming languages, from machine code to modern high-level languages.

📖 ~4 min read 💻 RRB NTPC / Group D — Computer Awareness

Generation	Type	Example
1GL	Machine Language (binary code)	0s and 1s
2GL	Assembly Language	Mnemonics like ADD, SUB
3GL	High-Level Language	C, C++, Java, Python
4GL	Very High-Level Language	SQL
5GL	AI-based Language	Prolog

Compiler	Interpreter
Translates the entire program at once before execution	Translates and executes line by line
Faster execution after compilation	Slower, but easier to debug

💡 High-level languages are closer to human language and must be translated (compiled/interpreted) into machine code to run.

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