Structures

In computer Science, a data structure is a particular way of organizing data in a computer so that it can be used efficiently.

There are many examples of data structures such as:

• array
• tuples
• dictionaries
• union
• tagged union
• set
• graphs
• object
• binary search trees

myList=[1,2,3,4,5,6]

print myList[2]                      (e.g. Array)

http://www.i-programmer.info/programming/python/3942-arrays-in-python.html

• Data structures are important because they allow us to do many things with our data. 
• They define a common terminology so that when a programmer sees code using an array he/she can automatically infer both how the data can be manipulated and how those manipulations will peform.
• Easier for programmers to edit things !in a list) because he/she wouldn't have to change a lot of the program
• Easier to find information in the data and use it for many purposes.