If you are ever asked to enter your username and password, you are being asked to enter your login information. A login is a combination of information that authenticates your identity. This could be a name and password or an ID number and security code. Many secure Web sites use login information to authenticate visitors before allowing them access to certain areas of the site. Unlike the words "brush" and "comb," this term should not be used as both a noun and a verb. It should only be used as a noun, (you don't login to a server, you log in to it).
TechTerms - The Tech Terms Computer Dictionary
This page contains a technical definiton of Login. It explains in computing terminology what Login means and is one of many technical terms in the TechTerms dictionary.
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