End of Message
Encyclopedia
End of message or EOM signifies the end of a message, often an e-mail
E-mail
Electronic mail, commonly known as email or e-mail, is a method of exchanging digital messages from an author to one or more recipients. Modern email operates across the Internet or other computer networks. Some early email systems required that the author and the recipient both be online at the...

. The subject of an e-mail may contain such an abbreviation to signify that all content is in the subject line so that the message itself does not need to be opened (e.g., "No classes Monday (EOM)"). This practice can save the time of the receiver and has been recommended to increase productivity.

EOM can also be used in conjunction with no reply necessary or NRN to signify that the sender doesn't require (or would prefer not to receive) a response (e.g., "Campaign has launched (EOM/NRN)") or reply requested or RR to signify that the sender wishes a response (e.g., "Got a minute? (EOM/RR)"). These are examples of Internet slang
Internet slang
Internet slang is a type of slang that Internet users have popularized, and in many cases, have coined. Such terms often originate with the purpose of saving keystrokes. Many people use the same abbreviations in texting and instant messaging, and social networking websites...

.
EOM is often used this way, as a synonym to NRN, in blog
Blog
A blog is a type of website or part of a website supposed to be updated with new content from time to time. Blogs are usually maintained by an individual with regular entries of commentary, descriptions of events, or other material such as graphics or video. Entries are commonly displayed in...

s and forums online. It is often a snide way for commenters to imply that their message is so perfect that there can be no logical response to it. Or it can be used as a way of telling another specific poster to stop writing back.

In earlier communications methods, an end of message sequence of characters indicated to a receiving device or operator that the current message has ended. In teleprinter
Teleprinter
A teleprinter is a electromechanical typewriter that can be used to communicate typed messages from point to point and point to multipoint over a variety of communication channels that range from a simple electrical connection, such as a pair of wires, to the use of radio and microwave as the...

 systems the sequence:

NNNN

on a line by itself is an end of message indicator. In several Morse Code
Morse code
Morse code is a method of transmitting textual information as a series of on-off tones, lights, or clicks that can be directly understood by a skilled listener or observer without special equipment...

 conventions including Amateur Radio
Amateur radio
Amateur radio is the use of designated radio frequency spectrum for purposes of private recreation, non-commercial exchange of messages, wireless experimentation, self-training, and emergency communication...

, the prosign
Prosigns for Morse Code
In Morse code, prosigns or procedural signals are dot/dash sequences that have a special meaning in a transmission: they are a form of control character...

 AR (dit dah dit dah dit) means End of Message.

Other Abbreviations

No internal message (NIM) can be used at the end of a subject line of an e-mail
E-mail
Electronic mail, commonly known as email or e-mail, is a method of exchanging digital messages from an author to one or more recipients. Modern email operates across the Internet or other computer networks. Some early email systems required that the author and the recipient both be online at the...

 or online forum
Internet forum
An Internet forum, or message board, is an online discussion site where people can hold conversations in the form of posted messages. They differ from chat rooms in that messages are at least temporarily archived...

 posting to indicate that the entirety of the message is contained in the subject line. For example, an email subject line might read, "Will be home by 6 pm; NIM".

Also commonly used is n/t, which stands for no text.
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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