REVISION

REVISION

1. Cribs

   • Character
     • A single letter, number or symbol.
   • real
     • Any number with a decimal point used for calculations.
   • integer
     • Any whole number used for calculations.
   • boolean
     • Stores 2 possible values (True or False / Yes or No).
   • string
     • Can contain numbers, letters and symbols.

2. secondary storage

   • Data types
     • solid state
       • more durable than the others
       • cant hold as much
     • magnetic
       • it is cost effective compared to solid state
       • it is a slower read/write spead
     • optical
       • more portable
       • less durable