Which translation method converts all source code into machine code for later execution?

Assemblers convert assembly language, a low-level language, into machine code. While they perform similar functions to compilers, their scope is limited to assembly language rather than a high-level programming language. Therefore, they do not handle the broader range of source code that compilers do.

The operating system is software that manages computer hardware and software resources and provides services for computer programs. It is not a translation method and does not convert source code into machine code. Instead, it creates an environment for programs to run once they have been compiled or interpreted.

Interpreters translate source code into machine code line by line at runtime, rather than producing a complete machine code file beforehand. This means that interpreted programs must be executed with the interpreter present, which can lead to slower performance compared to compiled programs.