Two word phrase meaning simple, effective, reliable and proven technology

manpreet Best Answer 2 years ago

As described in the title, I'm looking for a plain language phrase that means solid, dependable and established technology. The phrase I'm struggling to recall was I'm reasonably certain a two word phrase that might have terminated in something like era or period.

I think I've read it most recently in relation to Space Exploration, where it is used when the author wishes to make the point that the next steps can be undertaken without requiring new technology to be developed.

I think the phrase relates to a time period, "something era" for example.

To use it in a sentence; None of this is new, it is all {Insert Phrase} technology.