Stack

A Data Structure with contiguous block of memory containing data. Adding and removing data will always be performed at the last data placed[1].

Example

╔═══════════════╗
║       c       ║ ⟵ top of the stack (stack pointer)
╠═══════════════╣
║       b       ║
╠═══════════════╣
║       a       ║ ⟵ bottom of the stack
╚═══════════════╝

Applications

1. Last In First Out