What is the purpose of 'Reservations' in Amazon EC2

Question

I\'m just starting to explore amazon ec2. And I want to hear some explanations or may be some brief examples of how and why do you need \'reservations\' in amazon ec2. I\'m

Answer 1

From the boto docs:

A reservation corresponds to a command to start instances. You can see what instances are associated with a reservation:

>>> instances = reservations[0].instances
>>> instances
[Instance:i-00000000]