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Gilles explained very well the evolution from piece to another here, so I will cover the topic from more broad perspective and give some hints for further research.

Gilles explained very well the evolution from piece to another here, so I will cover the topic from more broad perspective and give some hints for further research.

Wanna know more?

Want to know more?

Your questions have too many confusions to attack them easily, such as presupposition about hierarchy that ignores the idea about chaos and ambiguous terms such as Windows -- dev branch or branding? And the term from Unix in the title tastes too much appealing-to-populism-in-Unix-quesion-site. It is hard to say how /dev/null such as W. and other closed things evolved because we don't know them, except speculation! People who know cannot speak. The source is primary, the rest is secondary. Be sure which blindfolds, i.e. search engine, you use for this topic, many valuable articles are dumped with irrelevant information as the case with the above removed article. As a starting point, you could try some links offered above.

Your questions have too many confusions to attack them easily, such as presupposition about hierarchy that ignores the idea about chaos and ambiguous terms such as Windows -- dev branch or branding? And the term from Unix in the title tastes too much appealing-to-populism-in-Unix-quesion-site. It is hard to say how /dev/null such as W. and other closed things evolved because we don't know them, except speculation! People who know cannot speak. The source is primary, the rest is secondary. Be sure which blindfolds, i.e. search engine, you use for this topic, many valuable articles are dumped with irrelevant information as the case with the above removed article. As a starting point, you could try some links offered above or below.

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