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JSP stands for Java Server Pages where these pages are considered as View Components as Presentation logic.Note: Conclusion drawn from Image is as follows: For the time being, just focus only on JDBC in order to get started with what exactly it is and how to use it by refer ring to the image depicted below as follows: Now you must be wondering what is JSP and Servlet and how JDBC is interrelated with them. These applications are known as web applications which are not standalone applications. Now, these types of applications are known as web applications that are the applications providing the services to the end-users without installing them. With the evolution of these 3 components, it removes the constraint of running only a single machine as it was impractical to users in the real-world application is made but forcing users to install then use them.

Hence, the scope is very constricted if we only do build standalone applications resulting out in the very little scope of development and scalability which gives birth to advance java which in turn gives birth to 3 components primarily namely JSP, Servlets, and JDBC in order to make the applications run on multiple machines.

Note: Standalone applications being one of two types of applications in the programming world only holds for 5% of the applications in the real world. These types of applications are known as standalone applications. So if we do are only aware of core java we can only build applications that can be run on the machine where the components of it are stored(in simpler words one can say where all the codes are written).