wired1837
The first wired communication system was the telegraph, invented in 1837, using electrical signals over wires.
#wired#telegraph#1837#electrical#first wired
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"The wired telephone network, built with copper wires, connected the world for over a century before wireless became dominant."
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"Ethernet, the wired networking standard, was invented in 1973 and remains the backbone of internet infrastructure."
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"Wired connections are generally more reliable and faster than wireless, but lack mobility."