Delete comment from: Ken Shirriff's blog
Here is a boock about the history of analog computing.
https://books.google.de/books?id=y1DpBQAAQBAJ&lpg=PA38&dq=Hoelzer+1941&pg=PA38&redir_esc=y#v=onepage&q=Hoelzer%201941&f=false
Feb 22, 2020, 3:52:36 PM
Posted to Looking inside a 1970s PROM chip that stores data in microscopic fuses