Hello Robert,
Web host is a company which provides your websites with web space, monthly bandwidth, Internet connectivity, control panels to make your administration easy as well as many more features on the server where it will be hosted. You will need to checkout it with your web host provider
Depending upon the provider, the server may be placed in the data centers, it might be located in US, UK, India, etc..
Please let me know if you have any more queries, I will be glad to help you.