In the communications discipline, a message is information which is sent from the source to a receiver. A bit of most common definitions include:

Any thought or idea expressed briefly in the plain or even secret language, prepared in the form suitable for transmission by any means of communication. An arbitrary total of information whose beginning and prevent come defined or even implied. Record information, a stream of data expressed in plain or even encrypted language (notation) and prepared inside the format specified for intended transmission by the telecommunications system.

Within computing, and sir thomas more particularly within distributed communication, the message occurs as information item that is asynchronously sent from either of these run or even even even even thread or terminus to a second run or thread or terminus.

In the Actor model a message is similarly an Actor itself that is sent asynchronously from either a single Actor to an additional.

Around languages like Smalltalk-8& Objective-C an instance of the class method is known as (confusingly) the message.

Watch likewise: Instant messaging, Message Oriented Middleware

History of messaging
Smoke signals - Ancient (short distance merely) Wind-power shipping (hence the title) "In 1800, it took 2 years to send a message from London to Calcutta. You wrote a physical letter and entrusted it to a wind-powered ship that sailed down the western coasts of Europe and Africa, around the Cape of Good Hope, back up the eastern coast of Africa, across the Arabian Sea, etc. -- with, presumably, stops in just about every port (yes, they had multi-hop message transports back then)." [http://www.saint-andre.com/blog/2004-05.html#2004-05-06T14:07] Semaphore - Limited use Telegraph - (late 19th century) Telephone - (late 19th century-early 20th century) Steamshipping "By 1914, it took 1 month to send a message from London to Calcutta. The Suez Canal had opened, and steamships powered their way through the Mediterranean to the Red Sea, and thence to India. Big improvement."[1] Radio, (early 20th century) Television - (mid 20th century) Airmail (1950s or even Sixties?) ~ I week. Overnight mail - became popular and low-priced in a Eighties, processed the international messaging just ii years. Electronic mail (~1994) - delivery times of Decade proceedings, according to total of hops, frequency of counterpoint retrieval, etc. Instant messaging - Message travels at average Hundred milliseconds, all but universally to a lesser degree another. Typically shorted to "IM", another time around combination by having a nature and severity of courier (YIM is yahoo instant courier).