Server Operating System Market By Component (Software, Services), By Type (Windows, Linux, UNIX, Others), By Deployment Mode (On-Premise, Cloud), By Organization Size (Large Enterprises, Small and Medium-sized Enterprises), By Virtualization (Physical Server, Virtual Server), By Industry Vertical (IT and Telecom, BFSI, Manufacturing, Retail and E-Commerce, Government, Healthcare, Others): Global Opportunity Analysis and Industry Forecast, 2021-2031