And cgi-bin was really just an evolution of inetd (or ucspi-tcp if you worshipped at the altar of djb). You didn't used to have to worry about binding to ports

And cgi-bin was really just an evolution of inetd (or ucspi-tcp if you worshipped at the altar of djb). You didn't used to have to worry about binding to ports or long running processes. Something would just send you a message on stdin and you replied on stdout.