<story><title>IBM paperweight teardown: Reverse-engineering 1970s memory chips</title><url>https://www.righto.com/2021/01/ibm-paperweight-teardown-reverse.html</url></story><parent_chain></parent_chain><comment><author>Syzygies</author><text>Twenty years ago I bought two core memory planes (1960&amp;#x27;s, $6K new) for $50 each. Gave one to my dad, kept the other. Astonished these hadn&amp;#x27;t inflated like art work.</text></comment>
<story><title>IBM paperweight teardown: Reverse-engineering 1970s memory chips</title><url>https://www.righto.com/2021/01/ibm-paperweight-teardown-reverse.html</url></story><parent_chain></parent_chain><comment><author>kens</author><text>Author here: anyone else have interesting IBM artifacts to discuss?</text></comment>