Learning how to think logically, approach complex problems, and structure coherent arguments, are important skills that you gain from studying philosophy. Perhaps this is why the mid-career median salary for a philosophy major is, according to PayScale Inc., more than that of several other science or business related majors (with only a bachelor's degree, 10 years after graduation) [1].
As an aside, philosophy and computer science aren't as unrelated as one might think; there are some interesting scholarly works that examine the philosophical foundations and implications of topics in computer science (android epistemology [2] is a good example).
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[1] http://online.wsj.com/public/resources/documents/info-Degree... [2] http://en.wikipedia.org/wiki/Android_epistemology