Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about User (computing)?
Summarize this article for a 10 years old
A user often has a user account and is identified to the system by a username (or user name). Other terms for username include login name, screenname (or screen name), account name, nickname (or nick) and handle, which is derived from the identical citizens band radio term.
Some software products provide services to other systems and have no direct end users.