Terms set forth steps to use the APIs and features of a computer program (software) and to manage the data from other programs outside of call and data formats such as that. Is the ability to use common software for individual software developers to develop from scratch all the features every time is expensive, difficult, is provided in the form of operating systems and middleware together. Stipulates the procedures for such a generic function call, use the API, each developer can create software using its features without having to write a short program calls the function according to the API, to program it yourself. You can develop software to provide computer software API can be called from outside the network through in recent years by increasing the distance and data

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