Computer Science Reconsidered: The Invocation Model of Process Expression is a very long title for a book that apparently argues that computer science is a discipline separate from mathematics, that requires its own theory of process expression. Although I haven’t read the book, I agree; there are certainly many places where the two fields overlap, but fundamentally it’s a different ballpark.
The fundamentals of what computer science actualyl is is something that I haven’t seen touched on much. But it’s a very new, 20th century field – and one that’s only in the last few decades begun to take on the importance it now holds. If you consider the lead time present in the rest of the sciences (often thousands of years), there’s a long road ahead. Computing is new; it’s still finding its feet. Anyone who tells you there’s a right way to do things is wrong.