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Influential Mainframer Trivia: Bob Evans

Apr 3, 2026

influential-mainframers, Trivia

Influential Mainframer Trivia Bob Evans

Sonja Soderlund

Sonja Soderlund is an Oregon-based B2B freelance writer. Whether writing about mainframe computers, educational technology, or sustainable retail, she strives to bring clarity to complex issues. Connect with her or LinkedIn.

At Planet Mainframe, April is dedicated to honoring influential mainframers past and present. This week’s quiz dives into the life and times of Bob Evans (1927–2004), who played a central role in shaping modern enterprise computing during his career at IBM. 

Specifically, Evans was deeply involved in the development of the legendary IBM/360. It was Evans who persuaded Thomas J. Watson to “bet the farm” on the 360, helping guide the project through enormous technical and organizational challenges. His leadership ensured that the System/360 not only succeeded commercially but also set a new standard for platform compatibility and long-term system planning—principles that continue to shape enterprise computing today.

In Evans’ New York Times obituary, Erich Bloch emphasized Evans’ centrality to mainframe history. “You cannot overstate his contribution,” said Bloch. “Probably without the 360 and his contribution, the industry might have developed at a much slower rate, and maybe in a different direction. And probably not in a good one.”

1. What did Bob Evans study during his university education?

 
 
 
 

2. In what year was Bob Evans hired by IBM?

 
 
 
 

3. What role did Bob Evans primarily play in the System/360 project?

 
 
 
 

4. How much did IBM invest in engineering, factories, and equipment to create the System/360?

 
 
 
 

5. Which IBM division did Bob Evans lead during the System/360 era?

 
 
 
 

6. What long-term cultural trait in mainframe computing is linked to Evans’ work?

 
 
 
 

7. What distinguished Evans’ contribution compared to hands-on engineers?

 
 
 
 

8. Which US president honored Bob Evans with the National Medal of Technology?

 
 
 
 

9. From 1981 to 1995, Evans acted as a chief science adviser to the government of which country?

 
 
 
 

10. According to the memories of his long-time secretary, Patsy Newman Costello, which of the following was Bob Evans known for at IBM?

 
 
 
 

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