AT&T Telessentials Communication networks TC1605

[@mikekjellman]

lol @ the person typing “here sre the july sales data” at the msdos command prompt. 😂😂

[@jonathankleinow2073]

"Clearly, the Public Switched Telephone Network is the heart of telecommunications." Well, it was, anyway. I'd focus on that Public Packet Data Network if I were you.

[@straightpipediesel]

They're not talking about the Internet, they're talking about X.25 networks. That died in the 90's. SMDS was a pre-release version of ATM (vs MPLS) that carried FDDI (vs Ethernet). The legacy telcos invented an alternate Internet that completely lost.

[@TheNovum]

great stuff