3.2.3 - Data Types and Structures

3.2.3 - Data Types and Structures

1. Data Types

   • Integer number
     • To store a whole number.
       • 4 bytes of memory required.
   • Real/Double number
     • To store a number with a fraction part.
       • 8 bytes of memory required.
   • Boolean
     • To store true or false.
       • 1 bit of memory required.
   • Character
     • To store a single character.
       • 1 byte of memory required.
   • String
     • To store alphanumeric text.
       • 255 bytes of memory required.

2. Data Structures

   • Arrays
     • The two types of arrays you need to know:
       • One Dimensional Array
       • Two-Dimensional Array
     • Ordered set of data items.
     • All data is of the same data type.
   • Records

3. Files