cPanel is an online control panel provided by hosting providers to its customers to manage their blogs.
Using cPanel webmasters can control each and every aspect of their website including databases, blog file manager, website backups, limited website traffic monitoring and much more. You have to login first to access your dashboard for cPanel.
cPanel login page and login url could be different according to different hosting providers but options will be almost same for all.
learningCMS is using Hostgator as seen below. Modern hosting providers offer options to install WordPress automatically through cPanel, please see Step-by-Step Guide to Start a Blog for more details