purchase of domain name and associate it to my computer

my goal is to buy a domain name and associate it to my personal computer. I never did such a thing before. So I went to the following provider: https://www.lws.fr and during the process of buying a domain name, they offer the following

Recommended offer for individuals. Dns management, Zone, Mx, Contacts, Status 2 email addresses (2GB quota/mailbox and 10MB attachment) Whois Anonymous ( Details )

My question is the following : is their offer above is an extra option to the reserved domain name and shall I be able further to associate the new domaim name to my personal computer

any extra link will be appreciated