Describe the functions of the Internet Corporation for Assigned Names and Numbers (ICANN)

What will be an ideal response?

The Internet Corporation for Assigned Names and Numbers (ICANN) is the nonprofit organization charged with overseeing the net's naming system. ICANN works out contracts with the organizations that manage URL assignments within each of the top-level domains, accredits the registrars who sell domain names, resolves disputes, and establishes policies. For instance, the net's naming system originally accepted only domain names written with the Roman alphabet. Recently, however, ICANN opened the door for other scripts.