A History of Erlang and the accompanying Presentation Slides by Joe Armstrong are a must read for anyone interested in PL history.
Erlang was designed for writing concurrent programs that "run forever". Erlang uses concurrent processes to structure the program.
These processes have no shared memory and communicate by asynchronous message passing. Erlang processes are lightweight and belong to the language and not the operating system.
Erlang has mechanisms to allow programs to change code "on...
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