
Ray Tomlinson invented the first email program in 1971
Ray Tomlinson invented the first email program in 1971
Ray Tomlinson created the first email program on the ARPANET system in 1971, revolutionizing communication by enabling mail between users on different hosts. Prior to this, email was limited to users on the same computer. Tomlinson's innovation introduced the use of the @ symbol to separate the username from the machine name, a convention still used in email addresses today.
Example
Before Tomlinson's invention, sending an email required both sender and receiver to use the same computer. After Tomlinson's invention, an email could be sent from user@example.com to user@differenthost.com, allowing for communication across different hosts connected to ARPANET.
Tomlinson's invention laid the foundation for modern email communication, enabling users to connect and share information across diverse computer networks.
Text messaging
"First text message: 'Merry Christmas' sent December 3, 1992."
1991 Soviet coup attempt
The first website went live on August 6, 1991 — created by Tim Berners-Lee at CERN
Fax
Fax machine invented in 1843, 33 years before the telephone
Grace Hopper invented the first compiler and coined the term 'debugging' after finding an actual moth in a relay
Grace Hopper invented the first compiler, coined 'debugging' after finding a moth in a relay
Software bug
First computer bug: A moth in Harvard Mark II, 1947
Colossus computer
Colossus, 1943: first programmable computer to decrypt Nazi codes
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