3.1.1 Data Types

Integer:  Whole positive or negative numbers

1,2,3,4,5,6,0,-1,-2,-3,-4,-5,-6 etc

Real/Floating point number: Decimal numbers are Used for times, measurements.  Floats are accurate but slow.

Date/Time: Used to store dates and times

e.g 11/06/2012/ 20.10pm

String: Strings are sequences of characters that can contain numbers, special characters and letters.

Variables in a computer program can be thought of as "Buckets" or "Envelopes" where information can be stored in computer memory

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