On Sunday, 30 March 2025, Ulf Kylenfall via <ulf_r_k=
[email protected]> wrote:
> ?
> Some time ago I had a discussion with a friend over old times circuit board design.
> He referred to where he worked where they used to do manual design using black tape and
> transparent films. "The layouts were beautiful but difficult or even impossible to modify".?
> ?
> Then "We got a CAD-system from HP" and it all changed.
> ?
> I am unfamiliar with CAD-systems created by and/or sold by HP and what happened to that product.
> Anyone that can shed some light?
ISTR using something similar in the early 80s. I suspect it might have been a Racal Redac CAD package using HP terminals for display. The terminals had a more widescreen aspect ratio than VT100s, and could draw lines well.
I haven't spotted a decent reference to all that.
