As per Gartner’s survey over 65% servers sold by Top 3 players including IBM, Dell, and HP are used for the purpose of ‘Web Hosting’ popularly known as ‘web hosting servers’. These servers can either be used as ‘Dedicated Server or Virtual Private Server’.
If, you have to run some application or need to run email or cloud or database or any other thing, you need to host them on web and thus you would use them for web hosting.
Remaining 35% of server may have multiple uses, which may include running ERP, CRM, SCM or any other application, which may not have any need of coming online (hosted on web).
Web Hosting Server generally refers to hosting of information on public domain accessible to anybody. Its main function is to deliver web pages to the clients.
Read more at : Go4hosting: Dedicated Server Hosting Services in India