concept · 1971 · Digital age
Exchanging messages over a network (Tomlinson).
Author: Raymond Tomlinson.
Principles and materials it uses
- ARPANET — uses. It appeared on ARPANET.
- Internet — uses. It works over the Internet.
- SMTP — uses. Sending mail.
History: what it evolved from and what it influenced
- Postal service — evolved from. Electronic mail.
Things built in a similar way
- Electrical telegraph — works like. An instant text message over a network — like a telegram.