Why machine language does not require compiler?

Answer 1

There is only one computer language that doesn't require a compiler - machine code. This is the language that the computer processor understands directly without having to be interpreted first. However it is difficult to understand and it is more usual for people to use assembly language.

Answer 2

Machine code is the only language that requires no translation. It is the native language of the machine. Any language that requires an assembler, a compiler or an interpreter, in any combination, has to be translated.

Answer 3

No, but all programming languages require a translation program to convert source code into machine code.

An assembler is a translator that converts low-level machine-specific code directly into that machine's native machine code. The resultant machine code can be stored and executed at any time without any further translation. An assembler is an extremely primitive translator that can be easily implemented in native machine code to accommodate that machine's specific instruction set. Every machine type requires its own native assembler (although versions of it will often be implemented by other vendors).

A compiler is a translator that converts high-level code into a low-level code. Typically the low-level code is machine code itself, however compilers can also be used to output assembly code or byte code, both of which require further translation.

An interpreter is a translator that executes a source program, performing the conversion to machine code while the program is executing. Each time the source is executed, it must be re-translated. As a result, interpreters run more slowly than native machine code programs. The source code may be a high-level language source or it may be the byte code produced by a compiler.

Most high-level languages are said to be either compiled or interpreted depending on which method of translation is used. However there's nothing to prevent an interpreted language from being compiled to native machine code, we simply need to write an appropriate compiler.

Java is an example of a language that is both compiled and interpreted. The Java source code is compiled to Java byte code which is suitable for interpretation by the Java virtual machine.

Answer 4

Machine language is the code which can be directly executed by the micro processor, no other translation is necessary.

Answer 5

Machine code.