Web Hosting Glossary: I

IIS: IIS (Internet Information Services) is Microsoft's web server software. IIS is the most widely used web server for the Windows operating system.
IMAP compatible: Internet Message Access Protocol (IMAP) is an e-mail protocol allowing access to your email from any IMAP compatible email application. Unlike POP3 where messages are downloaded to your local machine, your messages stay on the server while reading.
IP Address: An IP (Internet Protocol) Address is a unique number made up of 4 parts separated by periods assigned to a computer connected to the internet, such as "68.18.87.6". Every machine connected to the internet has a unique IP address.