A web hosting service is a type of Internet hosting service that allows individuals and organizations to make their website accessible via the World Wide Web. Web hosts are companies that provide space on a server owned or leased for use by clients, as well as providing Internet connectivity, typically in a data center.
A hosting server enables you to upload your site onto it. In some cases, there might be even thousands of web sites on one single web hosting server. The hosting server basically is a computer with special hardware, which is physically located in a datacenter facility with special cooling systems, whose purpose is to ensure the smooth functioning of the hosting server and all the websites accommodated on it.
In short, a hosting server will be indeed a launch pad when the time comes for you to launch your web site. It could be any type of website - a business site having a lot of web pages, or a site, which includes just a few pages and which you have built simply for your acquaintances and family members.