Dedicated Hosting offers the customer their own private server thus offering  complete control over its use. Most web hosting packages are called shared hosting providers - not dedicated hosting providers. What this means is that the server or servers that host your website are simultaneously hosting numerous other websites also. This gives you a discounted rate on web hosting services in exchange for tolerating certain technical constraints, like bandwidth, disk space, upload and download speeds, security and privacy, traffic, and probably the most notable restriction -- total control.

The key factors that a customer needs to  should consider are:

Business is cost conscious and the opportunity to cut costs wherever possible, is high on the mind of the CFO and the CIO.  Indeed coemptive pressure are such that  saving money may well be a matter of survival. IT functions based on in-house infrastructure are high on the list of areas that are being  outsourced. This applies across the scale from single applications to entire data centres.

There are differences between Linux and the Microsoft platform (and others). There are some differences between two platforms, such as security features, functionality and of course supported scripting languages. Microsoft has its own operating system with associated licensing fees, and Linux is an open source operating system that is often free. The majority of web features run on both platforms.

Linux Hosting | Enterprise RedHat

Linux , an "open source" operating system is a highly stable and reliable platform. A Linux hosting solution is designed for businesses requiring up to 99.99% uptime for their revenue-generating online applications: effectively, the solution cannot go down. Its design allows for high-volume web-serving capabilities, web-server redundancy, multi-layer managed security and dedicated processing for applications and database servers, and high-availability SAN services for database storage in a secure environment.