The sad part over here is that every one(including me)would have been familiar with the term "mainframes", not only familiar with the term but also we will be knowing what is it.But we might not have known what is runs on .
The operating system which is used by mainframes is Z/OS. It is a proprietary OS of IBM. Z/OS is a 64-bit operating system for mainframe computers. It was developed by IBM. Before Z OS was into existence there were few Operating system which IBM was using such as OS/390, MVS and some others. The mosh highly Appreciated fact about Z operating system is that it has extreme backward compatibility .Z/OS has the attribute of modern operating system and retains its orginal functionality too.
So i wish every one take a not of this. In a nutshell remember this "Mainframes uses Z operating system"
















