Slide 28 of 89
The 3600 was an upward compatible successor to the 1604 and quite beautiful. It had smoked glass panels and the logic was behind the glass panels. If you’re going to pay several million dollars for a computer they felt it should look solid and stunning. Another form of packaging. The 3600 carried CDC during the early 60s until the 6600 was available.
Cray worked on the circuitry for the 3600 en route to the 6600.