But smartphones - both iOS and Android - take their core operating systems essentially from the 70s. The kernels themselves are few decades newer than that. The concepts and interfaces implemented by them, however, are not. Similar things can be said about Windows Phone and NT.
Arguably, using an existing OS as a base was kind of the only way to get these products done in a reasonable timeframe. They run complex and powerful software and writing that stack alone is hugely demanding. Rewriting the OS would easily have lost the market to the competition because of cost and time overruns.
Arguably, using an existing OS as a base was kind of the only way to get these products done in a reasonable timeframe. They run complex and powerful software and writing that stack alone is hugely demanding. Rewriting the OS would easily have lost the market to the competition because of cost and time overruns.
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