Ray Tomlinson, email inventor who picked the @ sign for addresses, dies

Raymond Samuel Tomlinson, who is credited with inventing email and putting the now ubiquitous “@” sign in addresses, has died at the age of 74.

Tomlinson, who helped in the evolution of single-computer email into electronic mail that could send communications across network connections to other hosts, used the sign in the address to connect the user name with the destination address and provide a way to distinguish local mail from network mail.

“I chose to append an at sign and the host name to the user's (login) name. I am frequently asked why I chose the at sign, but the at sign just makes sense,” he wrote in a post about the first network email. “The purpose of the at sign (in English) was to indicate a unit price (for example, 10 items @ $1.95). I used the at sign to indicate that the user was "at" some other host rather than being local.”

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