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programming is not computer science, and this is clearly a programming issue. |
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In order to demonstrate that real progress could be made, Cox showed that making interchangeable [[software component]]s really needed only a few practical changes to existing tools. Specifically, they needed to support objects in a flexible manner, come supplied with a usable set of libraries, and allow for the code (and any resources needed by the code) to be bundled into a single cross-platform format.
Love and Cox eventually formed a new venture, [[Stepstone|Productivity Products International (PPI)]], to commercialize their product, which coupled an Objective-C compiler with powerful class libraries.
In 1986, Cox published the main description of Objective-C in its original form in the book ''Object-Oriented Programming, An Evolutionary Approach''. Although he was careful to point out that there is more to the problem of reusability than just the language, Objective-C often found itself compared feature for feature with other languages.
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