What are the different between a stack and a queue?

What are the different between a stack and a queue?

• Stack Example:
  • Consider a stack of plates. You can only add or remove the top plate. The last plate placed on the stack will be the first one you remove.
  • 
    
• Queue Example:
  • Consider a line at a checkout counter. The first person to get in line is the first one to be served. New people join the end of the line, and the person at the front is served next.
  • 
    

Both stacks and queues are essential in computer science, each serving different needs and applications based on their operational principles.