Holy cow, I wrote a book!
I dreamed that I was archiving old data.
Some came off an old CP/M floppy disc.
Another was an IntelliTrace debug log
from the 1980's.
Back then, IntelliTrace recorded the
history onto index cards, which were stored in trays like
in a library card catalog. Made jumping back and forth
really easy, but setting breakpoints was a pain.