Awful as it sounds, it was still data you could hear and decode using handwritten software. Protocols from those days were ones you could interact directly with - using software like telnet.
As a person who had to troubleshoot connections, I even have that first major repeat tone memorized. If it didn’t come through, I knew something was up.
HAHAHA! Yeah! I remember that awful noise!
Awful as it sounds, it was still data you could hear and decode using handwritten software. Protocols from those days were ones you could interact directly with - using software like telnet.
As a person who had to troubleshoot connections, I even have that first major repeat tone memorized. If it didn’t come through, I knew something was up.