What is the only real language a computer understands?

Machine code is the only real language a computer can understand.

Explanation:  

Machine code is the program which is written in machine language  that is 0 and 1. Machine code is the low-level language .A computer can understand only 0 and 1 so every language translates the source code into machine code respectively.

Further Explanation:

Machine code is a  program which is written in the machine language and directly executed by the CPU  

In the machine code, each instruction is provided to do a specific task such as load, jump, etc. Every programming language are translated into machine code with the help of a translator which are compiler and interpreter. The compiler translates the source code into machine code in one cycle, on the other hand,  interpreter translates the code line by line.

Advantages of machine code :

Disadvantages of machine code :

As in machine code, we have to remember all the machine operations and memory addresses so that a new language is raised. This new language is known as assembly language. Instead of using digits 0 and 1 they used mnemonic code. Assembly language is also known as symbolic machine code because we are used as the symbol instead of the digit.

The main drawback of assembly language is that it takes more time to run the program and it is not suitable for long program. Therefore, new language is raised which is high-level language.

Hence, 0 and 1 are the machine code respectively.

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Keywords:

Machine code , Binary code, machine language  etc.

system programmer option d is correct

because an operating system is software that manages computer hardware and system resources.

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