Yes, but odds are you won't live long enough to see anything useful. Mel's blackjack program https://en.wikipedia.org/wiki/The_Story_of_Mel from the 1950s might escape before you die (depending on how old you are), but it strongly depends on the specific architecture of a computer and so isn't useful.
There is probably a lot of software from then that isn't copyright. Back then you had to register copyright or you didn't have it - often that wouldn't have been done. Then you had to re-register the copyright, which given the software wasn't in use anymore wouldn't have been done. Both of these factors do not apply to modern software (at least not in most countries)
There is probably a lot of software from then that isn't copyright. Back then you had to register copyright or you didn't have it - often that wouldn't have been done. Then you had to re-register the copyright, which given the software wasn't in use anymore wouldn't have been done. Both of these factors do not apply to modern software (at least not in most countries)