The first communion device in the internet was a switch called ____?

The first communion device in the internet was a switch called ____?

انٹرنیٹ میں پہلا کمیونین ڈیوائس ایک سوئچ تھا جسے ____ کہتے ہیں؟
Explanation

The Interface Message Processor (IMP) was the first device used to connect computers in the early ARPANET, the precursor to the internet.

It acted like a packet-switching node, similar to modern routers.