Answer:
An operative system is a software serving as a foundation for processes on your computer. The operating system undertakes memory management and important security and stability enhancing tasks that is required for other software to run correctly. Computer hardware often differ in design and function and part of the operative systems's job is to minimize the design work needed by the other layers software to support each type of harware. Popular operating systems are; Microsoft's Windows, Apple's OSX and Linus and largely the open source community's versions of Linux.