RxJS is a library build around Observer Design Pattern. For developers it has a steep learning curve. But it solves common cumbersome problems of a synchronicity.

OSI Model

OSI (Open System Inteconnect) model is a generic model which is provide guidance to develop any network model. When OSI Model was released TCP/IP already implemented and used by companies so OSI is not get enough attention. After being lunched, the OSI model did not meet the practical needs as well as TCP/IP model. OSI …

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