You may observe further differences, depending on the nature of your hardware, the content you make available from your site, and other variables. A server with medium traffic might have a T1 line or some fraction of a T1 line installed. Large businesses that expect heavy Internet traffic may need fractional or multiple T1 lines or even T3 service in order to handle thousands of users. Modem connections to the Internet are available, but are typically used for individual client browsing, and are not recommended for servers. A connection to the Internet using a phone line and modem can service only two or three simultaneous users.
Information is transmitted on the Internet in data packets.
Each packet is addressed to a specific computer's IP address, such as 10.212.57.189. When a user browses the Internet by using a domain name, the browser first must contact a DNS server to resolve the domain name to an IP address, then contact the computer with that address. You must register a domain name in the DNS for your permanent IP address. Your ISP will generally provide your IP addresses and may also register your domain names. Internet service providers often offer additional client services.