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by porlw 4639 days ago
The obsolete stuff I studied at university almost 20 years ago:

Network and hierarchical (now called "NoSQL") DBs, the problems they caused and why they were replaced with Relational DBs.

Functional programming with a derivative of Haskell called Gofer

Parallel and distributed computing techniques (including stuff like SIMD, Message queues, Event driven programming). Wrote some Erlang.