http://www.vodahost.com/web-hosting-what-is-cpanel-hosting.html/

Visit VodaHost web hosting to learn how to create a subdomain in cPanel hosting.

VodaHost will begin to create a new subdomain in cPanel. Scroll down the cPanel hosting page to select the Subdomains icon under the Domains category. In the section of Create a Subdomain, first type the prefix of your new subdomain within the subdomain box. Clicking within the Document Root box available will automatically bring up the default directory for the subdomain. Select the Create button to create your subdomain.

A new display will appear verifying your new subdomain. Along with your subdomain which has been created, a folder called "the new subdomain" has also been created. This is where you will upload your files for this subdomain.

Select the Home icon on the top left of the screen to return to the main page of the cPanel hosting screen. Through VodaHost hosting you are now aware how to create a subdomain in cPanel.