12
votes
1answer
510 views

What did network programs use to communicate before sockets was invented (around 1983?)

Sockets were invented in Berkeley around 1983, but how did networked computer programs work before this? These days, pretty much everything uses sockets, so it's hard for me to imagine how else ...
68
votes
6answers
17k views

Difference between a socket and a port

Could someone please explain quite clearly the difference between a port and a socket. I know that a port serves as a door into the network for an application process and that the application process ...