https://www.righto.com/2021/01/ibm-paperweight-teardown-reverse.html?showComment=1612217256334&m=0
IBM paperweight teardown: Reverse-engineering 1970s memory chips
I recently received a vintage IBM paperweight from the early 1970s that showcases some memory chips. 1 When IBM started using integrated ...
ibm paperweightreverse engineeringteardown1970smemory