![Kevin O'Hara on Twitter: "An old IBM S/390 mainframe processor my dad was given during his IBM days. It's about 12”x12” and 20lbs. https://t.co/4K8dpFzbw8" / Twitter Kevin O'Hara on Twitter: "An old IBM S/390 mainframe processor my dad was given during his IBM days. It's about 12”x12” and 20lbs. https://t.co/4K8dpFzbw8" / Twitter](https://pbs.twimg.com/media/DSk0TQlXkAYHOtQ.jpg)
Kevin O'Hara on Twitter: "An old IBM S/390 mainframe processor my dad was given during his IBM days. It's about 12”x12” and 20lbs. https://t.co/4K8dpFzbw8" / Twitter
CPU Galaxy on Twitter: "The IBM Z800 Mainframe CPU. What a beautiful monster from back in the days. 😍 https://t.co/J2LzjfNrK0" / Twitter
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