ABOUT THIS EPISODE
n this episode of Computer History with Chris Garcia, we look at the IBM System/360, announced on April 7, 1964, and why it became one of the most important computer families in history. The System/360 was not just a new machine. It was IBM’s attempt to unify business, scientific, government, and institutional computing under one compatible architecture.
The episode covers Thomas J. Watson Jr.’s massive corporate gamble, Bob Evans’s role in pushing the project through IBM, Gene Amdahl and Gerrit Blaauw’s architectural work, Fred Brooks and the software nightmare of OS/360, Erich Bloch and Solid Logic Technology, and the way System/360 helped define the modern idea of a computer platform.
We also discuss the importance of compatibility, the transition from IBM’s older incompatible product lines, the 1964 launch, early models, the Model 67 and time-sharing, the move toward System/370, and the long-term legacy of System/360 in IBM mainframes and software engineering.
Sources and links:
IBM Archives: System/360
https://www.ibm.com/history/system-360
Computer History Museum: IBM System/360 announcement
https://www.computerhistory.org/tdih/april/7/
Computer History Museum: IBM System/360 mainframe history
https://www.computerhistory.org/revolution/mainframe-computers/7/164
IEEE Spectrum: Building the System/360 Mainframe Nearly Destroyed IBM
https://spectrum.ieee.org/building-the-system360-mainframe-nearly-destroyed-ibm
IBM: The 360 Revolution PDF
https://www.ibm.com/support/pages/zvm/history/360rev.pdf
Britannica: IBM
https://www.britannica.com/money/IBM
Wikipedia: IBM System/360
https://en.wikipedia.org/wiki/IBM_System/360
Wikipedia: Gene Amdahl
https://en.wikipedia.org/wiki/Gene_Amdahl
Wikipedia: Fred Brooks
https://en.wikipedia.org/wiki/Fred_Brooks
Wikipedia: The Mythical Man-Month
