"The team discovered that a single chip responsible for storing a portion of the FDS memory — including some of the FDS computer’s software code — isn’t working. The loss of that code rendered the science and engineering data unusable. Unable to repair the chip, the team decided to place the affected code elsewhere in the FDS memory."

Just another proof that we may have gained a lot, but also lost something in our pursuit of modernity: on modern systems direct memory access is discouraged if not prevented by the underlying OSes, and this hack would not have been possible.