FIFO data organization method
The FIFO (First in, first out) data organization method assumes that the first data added to memory (or the heap) will be the first to be removed from it, i.e. will be at the very top of the stack, while the most recently saved data will be at the bottom.
The well-known data type heap operates on the basis of FIFO and is designed to work correctly with global variables and dynamically changing objects.