If you are using Windows XP - right click on "My Computer" and choose (left click) Properties from the drop down menu.
platform
The operating system is immaterial. It is the languages used that are important. If you are targeting a specific platform then it obviously makes sense to develop upon that platform, but for cross-platform programming it really makes no difference what operating system you use.
Platform
Android
I guess windows 7 is the latest version of operating system in MICROSOFT.
Yes, each version of "Windows" is an operating system.
An operating system provide an interface between the user and hardware. operating system is a platform in which all the user applications can run
Platform
The platform.
sometimes is called a platform
Do you mean Windows? It's the most popular and compatible operating system available from Microsoft.
Can be run on any platform or operating system. Ex: Java