An operating system is the kind of software that allows you to communicate with the hardware, which means that you cannot use your hardware without an operating system. Unix is an operating system with many variants that have many things in common including their programming interface.
The Unix operating system was mainly programmed in C and not entirely in the assembly language, which makes it portable to other computer architectures without having to rewrite everything from scratch. It is important to understand that even if you are developing a Go program on a Unix machine, at the end of the day, your code will be translated to C functions and system calls because this is the only way ...
