I think the real jump start was the Work of Tim Berniers-Lee. I always wondered if he had a MAC, because they had search capabilities on MAC’s, but it was limited to one machine. I see that contribution of his to link searches across networks as the big jump in the internet.
With BSD Sockets one could search an entire network.I'm guessing Tim Berniers-Lee modeled on Unix with SED, GREP & AWK.
This NeXT Computer was used by Berners-Lee at CERN and became the world's first web server. Tim Berniers-Lee used a Steve Job's NeXT
which was the start of Apple OS X which is Unix.