IRIX usability report from 1993
This report on an IRIX OS release from 1993 shows that the more things change, the more things stay the same.
It's full of great advice such as:
Aim for simplicity in design, not complexity. Make a few things work really well; don't have 1000 flaky programs. Be willing to cut features; who's going to be more pissed off: a customer who was promised a feature that doesn't appear, or the same customer who gets the promised feature, and after months of struggling with it, discovers he can't make it work?
And a few brilliant burns:
Marketing - Engineering Disconnect: "Marketing -- where the rubber meets the sky."