The first time that computers were networked was in the 1960s.
The first time that computers were networked was in the 1960s. To answer this question, we can use historical knowledge or do a quick internet search. If you were to search for "When were computers first networked?", you would find that computer networking, known as ARPANET, was established in the late 1960s by the Advanced Research Projects Agency (ARPA), a branch of the United States Department of Defense. This was the precursor to the internet as we know it today.
