What is Compiler? Definition, Meaning & Example
A compiler is a computer program that translates code written in a programming language into machine language that the computer can execute.
TL;DR: A compiler is a computer program that translates code written in a programming language into machine language that the computer can execute.
Written & reviewed by the Syllab.in Academic Team (CBSE/NCERT subject experts) · Updated
Compiler: A compiler is a computer program that translates code written in a programming language into machine language that the computer can execute.
Explanation
Programmers write code in languages like Python, Java, or C that humans can understand. Compilers translate this code into binary or machine code that processors execute. Compilation happens before execution - the entire program is translated first. Compiled programs run faster than interpreted programs. Compilation errors must be fixed before running the program. Different languages use different compilers. Some compilers optimize code for efficiency. Understanding compilation helps programmers write better code and diagnose compilation errors.
Example
A C++ compiler translates a C++ program into machine code that can run on computers.
Frequently Asked Questions
What is the difference between a compiler and an interpreter?
A compiler translates entire programs before execution. An interpreter translates and executes code line by line. Compiled programs run faster while interpreted programs are more flexible.
What are compilation errors?
Compilation errors occur when the compiler cannot understand code or detects problems like undefined variables or syntax errors. Programs cannot run until compilation errors are fixed.
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