Stack

https://man7.org/linux/man-pages/man5/proc.5.html https://www.cs.swarthmore.edu/~kwebb/cs31/s15/bucs/elements_of_a_process.html

A specifically allocated memory area for a Process which stores various Registers and Counters and Stack Variables during program operation. The stack will store data across Function Calls

Larger data is usually stored in the Heap, and a Pointer is stored in a stack variable