Final answer:
The right-most part of a URL, like '.com', is called the top-level domain (TLD). 'Edu', 'gov', and 'org' TLDs represent education, government, and non-profit organizations, respectively, whereas '.com' is for commercial or business sites.
Step-by-step explanation:
The right-most part of the URL, such as '.com', is known as the top-level domain (TLD). The TLD can provide information about the website's domain and its purpose. For example, if a URL includes '.edu', it typically indicates that the website is affiliated with a college or university. Similarly, '.gov' is used by entities affiliated with the federal government, and '.org' is often used by nonprofit organizations. In contrast, '.com' domains are generally associated with commercial or business websites.