Found these here https://books.google.de/books?id=Jzo-qeUtauoC&pg=PT7&dq=%22g... Computerworld magazine 1976 VGI called a graphics processing unit (GPU)
> 3400 is a direct-writing system capable of displaying 3-D graphics and alphanumerics with speeds up to 20.000....
It's not what I would call a GPU, but I think it's hard to draw lines when it comes to naming things and defining things.
If anyone else wants to try to find the real GPU
https://www.google.com/search?q=%22gpu%22+graphics+processin...