What is compiler and interpreter its features and difference between

What is a Compiler?

• A compiler is a program that translates the entire code (written in human-readable language) into machine language (the language computers understand) at once.
• Once the code is converted, it creates a separate file (e.g., .exe) that can be run anytime without needing the original code.

Features of a Compiler:

1. Fast Execution: The program runs faster because everything is already converted into machine code.
2. Thorough Error Checking: It checks for errors in the whole program before running.
3. Time-Consuming Compilation: The process of converting the code takes longer.
4. Languages: Examples include C, C++, and Java.

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What is an Interpreter?

• An interpreter translates the code line by line into machine language. It doesn’t create a separate file; instead, it translates and runs the code at the same time.
• You need the original code every time you want to run the program.

Features of an Interpreter:

1. Slower Execution: The program runs slower because the code is translated while running.
2. Easy Debugging: Errors are shown immediately, one line at a time, making it easier to fix mistakes.
3. Languages: Examples include Python, Ruby, and JavaScript.

In Simple Words:

• A compiler is like a translator who translates the whole book before giving it to the reader. Once translated, the book can be read without the translator.
• An interpreter is like a translator who translates each sentence while the reader is reading it. The reader needs the translator every time they want to read the book.

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Conclusion:

• If you want faster programs and don’t need to see errors immediately, go for a compiler.
• If you want to fix mistakes quickly and run your code directly, an interpreter is better.