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The ARPANET project began with its seed ideas, as early as 1962. From the page below, you can read: "First ARPANET IMP log: the first message ever sent via the ARPANET, 10:30 pm, 29 October 1969." The direct answer to your question, then, is sometime between 1962 and October 29, 1969, depending on your definition of 'constructed'.
1969 -The Internet is BornThe first computer-to-computer message was sent in 1969, over ARPANET (Advanced Research Projects Agency Network), the world's first packet switching network and the precursor of the Internet. The message was sent from a computer at BBN Corp. (Bolt Beranek and Newman), a defense contractor, to one at UCLA. ARPANET was developed by the U.S. Department of Defense.
The very first device that had fundamentally the same functionality as a router does today, was the Interface Message Processor (IMP); IMPs were the devices that made up the ARPANET, the first packet network.
christian pogi , he is the the first person who send an electronic message christian pogi , he is the the first person who send an electronic message
ARPANET
ARPANET was developed
"The Creeper virus, it was first detected on ARPANET" - WikiPedia. The Creeper Virus displayed the message when connecting via dial-up: "I AM THE CREEPER: CATCH ME IF YOU CAN". It was discovered in 1789. This answer is Abhinav jain
by Khalid BetaniA computer virus is a computer program that can replicate itself. The Creeper virus was first detected on ARPANET, the forerunner of the Internet, in the early 1970s. Creeper was an experimental self-replicating program written by Bob Thomas at BBN Technologies in 1971. Creeper used the ARPANET to infect DEC PDP-10 computers running the TENEX operating system. Creeper gained access via the ARPANET and copied itself to the remote system where the message, "I'm the creeper, catch me if you can!" was displayed. The Reaper program was created to delete Creeper.
ARPANET
Yes ARPANET is the predecessor to our Internet today. What we all are able to use was first done as ARPANET. It was made by american defense and research team to transfer messages.
First there was ARPAnet, then there was internet. Simple enough?
"The Creeper virus, it was first detected on ARPANET" - WikiPedia. The Creeper Virus displayed the message when connecting via dial-up: "I AM THE CREEPER: CATCH ME IF YOU CAN". It was discovered in 1789. This answer is Abhinav jain