What is the difference between Force.com and Salesforce.com

Hi,

Salesforce.com is the actual CRM Software on Cloud with all standard applications for organizations and end users.
Force.com is same as Setup page for Admins and developers, which allows you to customize the salesforce.com applications, administer your salesforce.com, build new applications using number of tools (create/manage users, create/manage obj, fields, processes, rules, apps…)