[jjtheblunt]

no kidding...it's become some convention in the last 15 or so years, but in the early 1990s working on supercomputers i had never heard of it.

[RobertoG]

In Python 3 there is the ayncio module that is concurrent (logical execution is not sequential) but not parallel (only one thread). I found the distinction very useful when I started to look into it.

[dboreham]

I seem to remember it coming from Golang people.

[dagw]

I seem to remember it coming from Golang people.

The discussion existed around languages like Python, long before Golang showed up on the scene.