Vernor Vinge's novel A Deepness in the Sky has "programmer archaeologists" working on their starship fleets that have thousands of years worth of software going

Vernor Vinge's novel A Deepness in the Sky has "programmer archaeologists" working on their starship fleets that have thousands of years worth of software going back to "the 0-second of one of Humankind's first operating systems": https://en.wikipedia.org/wiki/A_Deepness_in_the_Sky#Interstellar_culture https://en.wikipedia.org/wiki/A_Deepness_in_the_Sky#Interste...