Source code is converted into machine code. Machine is created by human. Why did human create machine that can understand that ?

Question

What is the main feature in machine code that a source code couldn't do....plz explain my doubt..

Answer 1

It's to do with the history of how computers developed, and how humans figured out ways to get machines to follow a set of instructions.

Machine code would have been anything from punch cards to on/off signals (which represent boolean). This is easy for the computer to read but hard for humans, so higher level languages were made which then get interpreted into code that a computer understands.

I wouldn't say there is a main feature that machine code can do that source code (I'm assuming a higher level language like C) can't do. A computer simply can't understand source code in the way that a human does, but a human is more flexible and can understand both higher level languages and machine code (albeit with more difficulty than a computer).

I hope this is a sufficient answer.