A program which is responsible to translate assembly language code into equivalent machine code, is called as:

Question

Accepted Answer

The correct option is (4):
The Assembler is the specific type of system software designed to translate a program written in assembly language into its equivalent machine code. Assembly language is a low-level programming language that uses symbolic instruction codes, called mnemonics (such as ADD, MOV, JMP), which are human-readable representations of the computer's fundamental machine instructions. The assembler performs a direct, one-to-one conversion of these mnemonics and their operands into the exact binary format (0s and 1s) that the CPU can directly execute. This precise and direct translation role between assembly language and machine code is the defining characteristic that perfectly matches the description in the question.

The incorrect option is (1):
Translator is a general or umbrella term used for any program that converts source code from one programming language into another. The categories of Compiler, Interpreter, and Assembler all fall under the broader classification of a Translator. Therefore, while an Assembler is technically a translator, "Assembler" is the specific and most precise program dedicated to translating assembly language into machine code, making it the superior choice for this technical question.

The incorrect option is (2):
A Compiler is a program that translates a program written in a high-level programming language (like C, C++, or Java) into machine code or an intermediate object code. A key feature of a compiler is that it reads and translates the *entire source code* program all at once before the program is executed. It handles complex, high-level constructs, which is a fundamentally different function than the simple, one-to-one translation performed on assembly language mnemonics.

The incorrect option is (3):
An Interpreter is also a language processor that works with high-level programming languages (such as Python or JavaScript). Its method of operation is distinct in that it translates and executes the source code *line by line* at runtime, stopping to report errors as it encounters them. Because it works with high-level source code and executes incrementally, it is not the correct program responsible for the dedicated task of converting assembly language.