special process resulting in user authentication into the OS according to the user name and the password. After successful completion of this process, the user gains access to the OS according to the rights granted to that user.
The procedure by which a user gains access to, and initiates communication with, a computer in a time-sharing mode. Usually requires an authorized username and password. The opposite of logoff. Also written log on or log-on.
Noun or a verb. Noun: The account name used to gain access to a computer host system. Not a secret (contrast with Password) Verb: The act of entering into a computer system, e.g. "Login to the WELL and then go to the GBN conference." See also: Password
Procedure of obtaining access to the resources, such as applications and services provided by a computer. To authenticate users, typically a user identification (ID) and a password are required. In line with EnjoySAP SAP will ease the logon procedure and provide a Single Sign On for all mySAP.com components, that is, the users logs on once to gain access to all functionality for which he or she has authorization.
The steps you must take to gain access to a network. Most personal computers have no log-on procedure -- you just turn on the machine and begin working. For larger systems and networks, however, you usually need to enter a user name and password before the computer system will allow you to execute programs.
To start a session with a system, usually by giving a user name and password as a means of user authentication. The term is also used to mean the ability to access a service (also called an account), e.g. "Have you been given a login yet?" Source: Foldoc: Free On-line Dictionary of Computing