WINDOWS ,LINUX, MAC OS操作系统都是用什么编程语言写的?

What Languages are Windows, Mac OS X and Linux written in?

  Windows: C++, kernel is in C    

  Mac: Objective C, kernel is in C (IO PnP subsystem is Embedded C++)    

  Linux: Most things are in C, many userland apps are in Python, KDE is all C++

What programming language was Windows 7 written in?

Answer:

The foundation of Windows 7 is mostly written in C and a little bit of Assembly.

This is because a relatively low level language is required for access to processor registry management and connection with other devices (e.g. printer) to be established to the computer.

Most of the other core stuff is written in C++.

Lastly, there is a bit of C# written on the .NET Framework here and there, but the use of it is not that abundant (yet).

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