A system program that translates and executes an instruction at the same time is called:

Correct option is B

The correct answer is (b) Interpreter.

• An interpreter is a system program that reads, translates, and executes one instruction at a time from a high-level programming language into machine code.

• Unlike a compiler, which translates the entire program before execution, the interpreter works line-by-line, making it suitable for real-time execution and debugging.

Information Booster:

• Interpreter: Executes source code line by line (e.g., Python, JavaScript).

• Compiler: Converts the whole source code into machine code before execution (e.g., C, C++).

• Assembler: Converts assembly language into machine code.

• Operating System: Manages hardware and software resources; not directly responsible for code translation.

Additional Information: