primitive data types

• what is a Boolean data type and what are the storage requirements?


  • true or false value
  • 1 bit of storage
• what is a character data type and what are the storage requirements?



  • represents individual characters
  • 1 byte of storage in ascii or unicode
• what is a string data type and what are the storage requirements?



  • represents a sequence of characters
  • number of characters multiplied by 1 byte for ascii/ 4 bytes for unicode
• what is a integer data type and what are the storage requirements?



  • positive or negative whole numbers
  • 2 bytes for short int
  • 4 bytes for int
  • 8 bytes for long int
• what is a float/real data type and what are the storage requirements?



  • represents decimal numbers
  • 4 bytes for real/float
  • 8 bytes for double
• what is a variable 


  A variable is a named memory location in random access memory (RAM) that holds a value.