Usage share of operating systems the similar correlation for the richest countries and that poorer countries choose Apple's iPhone in lesser numbers. Data from Google however suggests that people in poorer countries are more likely to buy apps on Android. Smartphone penetration vs. desktop use, differs substantially by country. While some countries like Russia still measure desktop use high, there at 77% (and smartphones at 19%) this ranges down to a bit under 5% in Mali where Android smartphones have just over 95% share. In most western countries, smartphone use is close to, but still under 50%. Section below has more info on regional trends
VM (operating system) VM (operating system) VM (often: VM/CMS) is a family of IBM virtual machine operating systems used on IBM mainframes System/370, System/390, zSeries, System z and compatible systems, including the Hercules emulator for personal computers. The first version, released in 1972, was VM/370, or officially Virtual Machine Facility/370. This was a System/370 reimplementation of earlier CP/CMS operating system. Milestone versions included VM/SP. The current version, z/VM, is still widely used as one of the main full virtualization solutions for the mainframe market. The CMS usually coupled with VM in the name refers to the Conversational Monitor System, a single-user operating system