What is an AIM screen name?

AIM is an instant messaging service created by America Online (AOL). AIM screen names are unique usernames users create to identify themselves on the platform. They are typically a combination of letters, numbers, and symbols, and must be between 4 and 16 characters long. AIM screen names are used for communication and interaction with other AIM users, sending and receiving messages, file transfers, and participating in online communities and chat rooms.