A LEVEL COMPUTING

Data Structures

Theory

# 2. What is a data structure

*A data structure is a collection of data items stored in memory, in addition a number of operations are provided by the software to manipulate that data structure*.

A data structure means there is a relationship of some kind between the data items

Exactly what the relationships are determine what type of data structure is being used.

Typical operations on a data structure are:

ADD

INSERT

DELETE or REMOVE

FIRST

NEXT

LAST

LOCATE

The next few pages will describe some of the most common data structures used in computing

**Challenge** see
if you can find out one extra fact on this topic that we haven't
already told you

Click on this link: Data Structures

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