E-mail, the so-called email, has changed the face of communication for decades. E-mail can be defined as a method for creating, sending, storing, and receiving messages via electronic communication systems. The word "e-mail" is used both for a noun and a verb, and for every SMTP, X.400 and intranet-based Internet e-mail system.

How did this all begin?

Internet was an e-mail: this was the most important tool for developing the Internet at the end of the '80s. The Massachusetts Institute of Technology first introduced the CTSS (Compatible Time Sharing System) CTSS in 1961. CTSS has allowed many simultaneous users to log in from the IBM 7094 remote dialer and store online files as floppy disks. This incredible development encouraged users to share information in a number of ways. E-mails were born in 1965 when multiple users of a time-sharing mainframe communicated remotely and electronically.

While full history and exact dates are somewhat obscure, the first systems were System Development Corporation Q32 and Massachusetts Institute of Technology CTSS. In 1966, email grew rapidly to receive a network e-mail, enabling users to pass e-mail between different computers.

ARPANET has undoubtedly played a good role in developing e-mail. Historical accounts show that regular e-mail transfers were made after the 1969 establishment. Ray Tomlinson, the developer of the time-sharing system called TENEX, was the first to discover that different stations can be distinguished by using the @ sign to separate the user's name and machine. By 1971, when the actual "e-mail" was discovered, machines can only send messages to users within their system.

E-mail popularity has been enhanced with ARPANET and e-mail has become the Internet's core technology.

Ray Tomlinson – Discovery of Network Email

The first person to discover the possibility of receiving computers across the network is Ray Tomlinson, the person who is thankful for the e-mail's revolutionary result. Although there have been reports in many cases when different users came to the same computer and made a great impression among users, the real email that we know today started with the first network e-mail address.

Ray Tomlinson was involved in a group called TENEX sharing on Digital PDP-10 computers and worked on both the TENEX and CPYNET (experimental file transfer) network control protocol. While making improvements to the SNDMSG in the local inter-user mail, Ray Tomlinson realized that the CPYNET code could simply be embedded into the SNDMSG and sent messages through the remote mailbox network connection, as well as sending messages to local mailbox files.

By embedding SNDMSG and CPYNET functionality, it has succeeded in developing a network e-mail program and testing it on two machines that are literally arranged side-by-side. The @ sign used to differentiate between different machines, for example: " to me @ this machine for you @ thatmachine ". After testing the program multiple times by sending messages between two computers, you have sent a general message to your group, explaining how to send a message over the network. This is how the first network e-mail was created.

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