Apollo Guidance Computer source codes are available.

On Google Code some source codes of programs for Apollo spaceships which flew to the Moon are laid out. These programs were run by the Apollo Guidance Computer computer , which controlled the navigation of the ships.

In my opinion, this is a smart move. Perhaps the value of such codes is approaching zero. But to touch the legendary piece of history, to the times when programming was just beginning, it is wonderful.

* Many probably assembler codes have never seen, it is worth seeing what it is.
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The license of the codes that I looked at was the Public domain.

The picture for this article is taken from the Apollo Guidance Computer wiki article and is a computer dashboard.