What are some real-world examples of queue and stack usage?

What are some real-world examples of queue and stack usage?

Queues and stacks are fundamental data structures used in various applications. For example, a queue is used in print job management, where documents are printed in the order they are received. A stack is used in function call management in programming languages, where the last function called is the first to return.

Can you explain how a queue works in a ticketing system?

Sure! In a ticketing system, customers are added to a queue as they arrive. The first customer to enter the queue is the first one to be served, following the First-In-First-Out (FIFO) principle. This ensures fairness in service.

What about stacks? How are they used in web browsers?

Web browsers use stacks to manage the history of pages visited. When you navigate to a new page, the current page is pushed onto a stack. If you hit the back button, the browser pops the last page off the stack and displays it.

Are there any other examples of stacks in programming?

Yes! Stacks are also used in undo mechanisms in applications, where the last action performed can be undone first. They are also crucial in parsing expressions in compilers.