Instantiation
In computer science, instantiation is the realization of a predefined object. In OOP (object-oriented programming), a class of object may be defined. All objects of this class have a certain set of properties (associated variables), accessories (ways to access those variables), and methods (functions). An instance of that object may then be declared, giving it a unique, named identity to be used in the program. This process is called "instantiation."
The term "instantiation" is also used in other areas of computer science, such as in the creation of virtual servers. The virtual server's properties (disk space, allocated RAM (random-access memory), operating system, installed software, etc.) are defined beforehand. Then, multiple servers can be virtualized on a single machine, each using that configuration. The process of virtualizing them is called instantiation, and each virtual server is called an instance.