A few links to videos of interest to Cray-History visitors. Most of these are created by the Computer History Museum.
What’s All This About Gallium Arsenide?, lecture by Seymour Cray at Super computing 1988 includes industry history.
The CRAY T3D Massively Parallel Processing System, lecture by Stephen Nelson and Steven Oberlin
Cray Research – A Story of the Supercomputer by CFMoIT
Walking through computer history with Apple cofounder Woz at the Computer History Museum
Cray-1 Supercomputer 30th Anniversary by CHM
See also The C90 and T90 Application mini movies