An @ By Any Name
An Icon for the Digital Age
Email Versus E-mail
Frequently Asked Questions
Frequently Made Mistakes
Forbes ASAP Legends
The popularity of email has prompted much research into the origin and history of the at sign. A Picking Brains HotWired article by Brenda Danet has a short list of names for the at sign and some of the history.
Another article is @ - a Sign of the Times by Karl-Erik Tallmo. This article erroneously attributes the adoption of the at sign into the computer world in 1970 to TENEX, but it was certainly in use much earlier than that.
There are many additional articles on the history and naming of the at sign.
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