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Variables

Placeholders for representing or holding data. e.g x + 2y -2 = 1


x and y are placeholders for representing data

x and y

Data types

A set of data with predefined values. E.g integer, floating point, unit number, character, string

integer, floating point..

Data Structure

A particular way of storing and organising data in a computer so that it can be used efficiently.


e.g arrays, lists, linked lists, hash tables