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Submission + - Apollo 11 Had a Hidden Hero: Software (wsj.com)

Outatime writes: Monday's Wall Street Journal includes a special Apollo 11 feature; of particular interest to many Slashdot nerds is the piece on the pioneering computer hardware and software that took three astronauts, and landed two, on the moon.

From the article:

[On July 20, 1969,] the lives of two astronauts, the efforts of more than 300,000 technicians, the labor of eight years at a cost of $25 billion, and the pride of a nation depended on a few lines of pioneering computer code. Humans had never risked so much on zeros and ones. Yet they decided to trust the machine and the binary two-digit code, and Armstrong and Mr. Aldrin reaped the glory as the first people to walk on the moon.

Comment Re:Not "analog" (Score 1) 399

I'll agree to being confused. Thanks for being more useful than the other commenter and providing some helpful information.

Here's the definition I'm using, from dictionary.com:

"adj. of or pertaining to a mechanism that represents data by measurement of a continuous physical variable, as voltage or pressure."

It's easy for me to see how a video cassette fit this definition, as it is a record of voltage. I can believe that film also fits the definition but I'm not a chemist. What's the continuous physical variable recorded on film?

Comment Not "analog" (Score 1) 399

Not "analog," but optical. Film is storing the actual picture, not an electromagnetic representation on magnetic tape. It should be noted that all that is not digital is not necessarily "analog."

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