is responsible for the allocation of local variables and passing of parameters and return values to and from routines.

The Stack is responsible for the allocation of local variables and passing of parameters and return values to and from routines. In computer science, a stack is a particular kind of abstract data type or collection in which the principal (or only) operations on the collection are the addition of an entity to the collection, known as push and removal of an entity, known as pop. The relationship between the push and pop operations is such that the stack is a Last-In-First-Out (LIFO) data structure. In a LIFO data structure, the last element added to the structure must be the first one to be removed. This is particularly useful in certain types of computing where a common use of a stack is to store subroutine arguments and return addresses.