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Master LIFO and FIFO processing models
Section 3 of 8
From the hardware in your phone to the browser you're using right now, the stack is the invisible architect of flow.
Every modern browser manages history using Two Stacks. One for your previous pages and one for the pages you skipped when clicking back.
When you click a link, the previous page is PUSHED to the Back Stack.
When you click 'Back', the current page pops from Back and PUSHES to the Forward Stack.
Your CPU uses a stack to keep track of function calls. When you call a function, its address is pushed. When it finishes, it pops back to its original location.
Every action in your editor is pushed to an 'Undo Stack'. Clicking Ctrl+Z pops the action and reverses it. Perfect for LIFO data flow.
Modern compilers use stacks to evaluate mathematical expressions (Postfix Notation) and ensure parentheses are balanced.