domain-host-1

Subdomains are a way of creating separate accounts within your account, access the URL separately. For example, you could create a  timber  subdomain on your master account  hardware.com  which can be accessed as  timber.hardware.com. 

Many large businesses use subdomains to establish branding and focus on separate product lines, because a subdomain creates a separate URL and web presence. It creates a new CPanel when you create a subdomain. Management functions for the subdomain through your master CPanel on. Practically a subdomain to a subfolder in the account is with a private plane public_http cgi-bin.

The  timber  example above is a new top-level folder called timber, with a cgi-bin folder. Upload your files are on the subdomain, including a separate startup file (eg index.htm).