What is the main difference between a Stack and a Queue in terms of element access order?
The fundamental difference in access patterns is: 1) Stack implements Last-In-First-Out (LIFO) order where last element added is first to be removed, 2) Queue implements First-In-First-Out (FIFO) order where first element added is first to be removed, 3) Stack operations focus on one end (top) while Queue operates on both ends, 4) Stack is like a stack of plates - you take from the top, 5) Queue is like a line of people - first person in line is first to leave, 6) These patterns affect implementation and use cases, 7) Understanding this difference is crucial for choosing the right structure, 8) Impacts performance characteristics of operations.