The Magnuson M80 range was available from the late 1970s and was successful when IBM struggled to ship machines.

[citation needed] The company declared bankruptcy in March 1983 after IBM introduced new models and reduced prices.

[2] The Magnuson processors were aimed at the lower end of IBM's product line.

[citation needed] All of the slots in the main chassis were interchangeable.

There the "tell me three times" logic was incorporated into their chip designs at the level of individual gates and flip-flops.